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Imperialism Rise in Nationalism • During the French and Industrial Revolution, nationalism continued to inspire nations to increase their political and economic power. • Nationalism became the ideal force in the political, economic, and cultural life in the world, becoming the first universal ideology-organizing all people into a nation state. Nationalism Defined • The strong belief that the interest of a particular nation-state is of primary importance. o Nation-State – a state where the vast majority shares the same culture and is conscious of it. It is an ideal in which cultural boundaries match up with political ones. • As an ideology, it is based on the idea that the individual’s loyalty and devotion to the nation-state surpass other individual/group interests. • Exalting one nation’s belief above all others and placing primary emphasis on promotion of its culture and interests, excluding the interests of others. Changing the World through a Nationalistic Vision • The French Revolution significantly changed the political world and how countries govern. • The Industrial Revolution significantly changed the economic world. • The Age of Imperialism (1870-1914) dramatically changed the political, economic, and social world. What is Imperialism? • Imperialism- The policy of extending the rule of authority of an empire or nation over foreign countries, or of acquiring and holding colonies and dependencies. Power and influence are done through diplomacy or military force. Reasons for Imperialism • There are 5 main motives for empires to seek to expand their rule over other countries or territories: 1. Exploratory • Imperial nations wanted to explore territory unknown to them. • The main purpose for this exploration of new lands was for resource acquisition, medical or scientific research. o Charles Darwin • Other reasons: o Cartography (map making) o Adventure 2. Ethnocentric • Europeans acted on the concept of ethnocentrism o Ethnocentrism- the belief that one race or nation is superior to others. • Ethnocentrism developed out of Charles Darwin’s “survival of the fittest” theory. Philosophers used the theory to explain why there were superior races and inferior races. o This became known as Social Darwinism. • Most imperial nations believed that their cultural values or beliefs were superior to other nations or groups. • Believed imperial conquest would bring successful culture to inferior people. 3. Religious • Imperial expansion promoted a religious movement of people setting out to convert new members of conquered territories. • With the belief that Christianity was superior, missionaries believed it was their duty to spread Christianity to the world. • Christian missionaries established churches, and in doing so, they spread Western culture values as well. • Typically, missionaries spread the imperial nation's language through education and religious interactions. 4. Political • Patriotism and Nationalism helped spur our imperial growth, thus creating competition against other supremacies. • It was a matter of national pride, respect, and security. • Furthermore, European rivalry spurred nations for imperial conquest. Since land equaled power, the more land a country could acquire the more prestige they could wield across the globe. • Empires wanted strategic territory to ensure access for their navies and armies around the world. • The empire believed they must expand, thus they needed to be defended. 5. Economic • With the Industrial Revolution taking place during the same time, governments and private companies contributed to find ways to maximize profits. • Imperialized countries provided European factories and markets with natural resources (old and new) to manufacture products. • Trading posts were strategically placed around imperialized countries to maximize and increase profits. o Such places as the Suez Canal in Egypt which was controlled by the British provided strategic choke hold over many European powers. o Imperial powers competed over the best potential locations for resources, markets, and trade. History of Imperialism • Ancient Imperialism 600 BCE-500 CE o Roman Empire, Ancient China, Greek Empire, Persian Empire, Babylonian Empire. • Middle Age Imperialism (Age of Colonialism-1400-1800s) o Great Britain, Spain, Portugal, France, Netherlands (Dutch), Russia. • Age of Imperialism 1870-1914 o Great Britain, Spain, Portugal, France, Germany, Belgium, Italy, Japan, United States, Ottoman Empire, Russia. • Current Imperialism...? o U.S. Military intervention (i.e. Middle East) o Russia’s Invasion of Ukraine. Imperialism Colonialism • Refers to political or economic control, either legally or illegally. • Refers to where one nation assumes control over the other. • Creating an empire, expanding into neighboring regions and expanding the dominance far outside its borders. • Where a country conquers and rules over other regions for exploiting resources from the conquered country for the conqueror's benefit. • Foreign government controls/governs a territory without significant settlement. • Foreign government controls/governs the territory from within the land being colonized. • Little to no new settlement established on fresh territory. • Movement to settle to fresh territory. Age of Colonialism WHEN? • Started around the late 1400s and ended around the late 1700s/early 1800s. WHY? • Primary Reason: European countries, wished to find a direct trade route to Asia (China & India) and the East Indies. o Quicker and relatively more effective than land routes over Asia. • Secondary Reason: Empire expansion (land power) WHO? • Countries involved: Great Britain, France, Spain, the Dutch & Portugal. • Individuals’ knowns as Mercantilists believed that maintaining imperialized territory and colonizing the region could serve as a source of wealth, while personal motives by rulers, explorers, and missionaries could therefore promote their own agenda. o This agenda being “Glory, God and Gold”. Mercantilism • Mercantilism was a popular and main economic system for many European nations during the 16th to 18th centuries. • The main goal was to increase a nation’s wealth by promoting government rule of a nation’s economy for the purpose of enhancing state power at the expense of rival national power. • It was the economic counterpart of political absolutism. Why did mercantilists want colonies? • Mercantilists believed that a country must have an excess of exports over imports. • By colonizing territory, it provided the nation with indispensable wealth of precious raw materials. • Therefore, the claimed territory served as a market and supplier of raw materials for the mother country. Which, in time, provided an excess of exports for the nation and thus created wealth. o Development of Trading Companies to support this economic system. Hudson Bay Company – (1670). Controlled primarily North America. o Dutch East Indie Trading Company (1682) o East Indian Trading Company (1600) o Royal African Trade Company (1672) WHERE? • European nations begun to colonize the America, India and the East Indies to create a direct trade route. • Great Britain was the leading power in India, Australia and North America, South Africa. • Spain colonized central and South America. • French held Louisiana, coastal land of Africa and French Guinea. • The Dutch built an empire in the East Indies. • The Portuguese was able to take control of present-day Brazil and the southern tip of South America and Japan. Age of Colonialism • As countries started to imperialize these regions, eventually the concept of colonization took hold: • This is what makes the Age of Colonialism extremely different! End of Colonialism • By 1800, colonialism became less popular • Why? o Revolutions (Spain, France & American) o The Napoleonic Wars o Struggle for nationalism and democracy. o Exhausted all money and energy to supervise their colonies. Waiting to wake again • Imperialism would stay quiet for close to 50 years before Great Britain and France’s economies revitalized. • The outbreak of the Industrial Revolution only encouraged and revitalized European nations to begin their conquest for new territory and resources. Age of Imperialism THE SCRAMBLE FOR AFRICA 1870-1914 Conditions Prior to Imperialism of Africa  European interest in exploiting Africa was minimal.  Their economic interests & profit in Africa primarily came through coastal trade that took place during the 1500-1700s.  The slave trade became the main source of European profit.  Furthermore, disease, political instability, lack of transportation and unpredictable climate all discouraged Europeans from seeking territory. Slave Trade & the Trans-Atlantic Slave Voyages  Forced labor was not uncommon during the 13-17th Centuries. Africans and Europeans had been trading goods and people across the Mediteranea for centuries.  This all changed from 1526 to 1867, as a new system of slavery was introduced that became highly “commercialized, racialized and inherited”  By 1690, the America and West Indies saw approximately 30,000 African people shipped from Africa. A century later, that number grew to 85,000 people per year.  By 1867, approximately 12.5 million people (about twice the population of Arizona) left Africa in a slave ship. What Changed? 1. End of the Slave Trade- Left a need for trade between Europe and Africa. 2. Innovation in technology- The steam engine and iron hulled boats allowed Europe 3. Discovery of new raw materials- Explorers located vast raw materials and resources and this only spurred imperialism with Europe in the wake of the Industrial Revolution. 4. Politics- Unification of Germany and Italy left little room to expand in Europe. Germany and Italy both needed raw materials to “catch up” with Britain and France so they looked to Africa. The Scramble for Africa  The scramble started in 1870.  Although some coastal land had previously been acquired before 1870, the need for territory quickly accelerated as European countries looked t get deeper into Africa.  Within 20 years, nearly all continents were placed under imperialistic rule. Who was Involved?  Great Britain  France  Germany  Italy  Portugal  Belgium  Spain (kind) Violent Affairs  Violence broke out multiple times when European nations looked to claim the same territory.  Germ Chancellor. Otto van Bismarck. Attempted to avert the possibility of violence against the European powers.  In 1884, Bismarck organized a conference in Berlin for the European nations. The Berlin Conference (1884-85)  The conference looked to set ground rules for future annexation of African territory by European Nations.  Annexation is the forcible acquisition and assertion of legal title over one state’s territory by another state, usually following military occupation of the territory.  From a distant perspective, it looked like it would reduce tensions among European nations and avert war.  At the heart of the meeting, these European countries negotiated their claims to African territory, made it official and then mapped their regions.  Furthermore, the leaders agreed to allow free trade among imperialized territory and some homework for negotiating future European claims in Africa was established. Further Path  After the conference, european powers continued to expand their claims in Africa so that by 1900. 90% of the African territory had been claimed. A Turn towards Colonization?  Upon the imperialization of African territory, European nations and little interest in African land unless it produced economic wealth.  Therefore, European governments put little effort and expertise into these imperialized regions.  In most cases, this emat a form of indirect rule. Thus, governing the natin without sufficient settlement and government from within the mother country. Some Exceptions  There were some exemptions through in Africa as colonization was a necessary for some regions i n Africa.  Some regions where diamonds and gold were present. Government looked to protectorate the regions and establish rule and settlement in the regions.  Protectorates: A state controlled and protected by another state for defense against aggression and other law violations. Would  Some examples include South Africa, Botswana, Zimbabwe and Congo. Conclusion  Although it may appear that the Berlin Conference averted war amid the African Scramble, imperialism eventually brought the world into worldwide conflict.  With the continued desire to create an empire by European nations. World War 1 would break out which can be linked to this quest at imperialism.
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Modèles OSI, TCP/IP et principe d'encapsulation

Contexte et objectifs

Ce cours, d’une durée estimée à 1\,h\,30, s’inscrit dans un environnement d’information et d’apprentissage. Il s’adresse à des apprenants disposant déjà d’un minimum de connaissances sur le fonctionnement des réseaux. L’objectif est de présenter les caractéristiques des modèles de référence OSI et TCP/IP, puis d’expliquer en détail le principe d’encapsulation utilisé pour le transport sécurisé et ordonné des données.

Présentation générale des modèles OSI et TCP/IP

Le modèle OSI (Open Systems Interconnect), défini par l’ISO, décrit l’architecture réseau « idéale » selon une hiérarchie de 7 couches, numérotées de la couche physique (la plus basse) à la couche application (la plus haute). La suite TCP/IP (Transmission Control Protocol / Internet Protocol), historiquement liée à l’Internet, regroupe les fonctionnalités en 4 couches seulement, car certaines fonctions OSI sont fusionnées.

Le modèle OSI : 7 Application, 6 Présentation, 5 Session, 4 Transport, 3 Réseau, 2 Liaison, 1 Physique.
Le modèle TCP/IP : 4 Application, 3 Transport, 2 Internet, 1 Accès au réseau.

Bien que les noms diffèrent, une correspondance naturelle existe entre les niveaux (par exemple, la couche Application TCP/IP englobe les couches Application, Présentation et Session OSI).

Détails fonctionnels des couches OSI

Couche Application (OSI 7) : point de contact direct avec les programmes utilisateurs (messagerie, navigateur). Elle reçoit ou fournit les données brutes. Elle déclenche les fonctions des autres couches.

Couche Présentation (OSI 6) : convertit les formats locaux en un format standard (encodage, compression, chiffrement) afin d’assurer l’interopérabilité entre systèmes hétérogènes.

Couche Session (OSI 5) : gère la liaison logique entre deux hôtes (établissement, maintenance et terminaison de session). Elle implémente des mécanismes de synchronisation et de contrôle du dialogue.

Couche Transport (OSI 4) : assure la communication de bout en bout entre processus applicatifs. Elle crée une connexion logique, segmente les données, numérote les segments et ajoute un en-tête de transport pour la fiabilité (TCP) ou le datagramme non connecté (UDP).

Couche Réseau (OSI 3) : fournit l’adressage logique via les adresses IP uniques, choisit les routes et contrôle les flux. Un en-tête réseau contenant les informations de routage est ajouté.

Couche Liaison (OSI 2) : détecte et corrige les erreurs de transmission, contrôle les flux locaux et effectue l’adressage physique (adresses MAC). Le paquet est encapsulé dans une trame avec préambule, en-tête et trailer (FCS).

Couche Physique (OSI 1) : convertit la suite de bits en un signal électrique, optique ou radio transmis sur le support (cuivre, fibre, ondes). Des normes comme Ethernet, USB, Bluetooth, DSL ou ISDN spécifient tensions, synchronisation et connecteurs.

Correspondances avec le modèle TCP/IP

• Couche Application TCP/IP = Application + Présentation + Session OSI.
• Couche Transport TCP/IP = Transport OSI (TCP/UDP).
• Couche Internet TCP/IP = Réseau OSI (IP, ICMP, IGMP…).
• Couche Accès réseau TCP/IP = Liaison + Physique OSI (Ethernet, Wi-Fi…).

Principe et définition de l’encapsulation

L’encapsulation consiste à insérer les données d’un protocole à l’intérieur d’un autre en ajoutant, à chaque couche, un en-tête (header) renfermant des informations de gestion (adresses, ports, contrôle d’erreur, séquencement). Cette technique empêche tout accès direct aux données autrement que par les services prévus, assurant ainsi intégrité, confidentialité et modularité.

Dans une communication :

  1. La machine émettrice part de l’Application et descend jusqu’à la Physique en empilant successivement les en-têtes (encapsulation).

  2. La machine réceptrice réalise l’opération inverse : elle remonte de la Physique vers l’Application en retirant les en-têtes un à un (décapsulation) après les avoir interprétés.

Unités de données selon la couche

Au fil de la traversée descendante ou ascendante, la nature du PDU (Protocol Data Unit) change de nom :

• Couche Application : « message » (ou « data ») ;
• Couche Transport : « segment » ;
• Couche Réseau : « paquet » ;
• Couche Liaison : « trame » ;
• Couche Physique : « signal » ou « bits ».

Ces dénominations reflètent l’ajout ou la suppression des en-têtes spécifiques à chaque plan de communication.

Processus de décapsulation

Quand les données quittent le médium et pénètrent dans l’hôte destinataire, le signal est d’abord converti en bits (Physique). À chaque étape ascendante, l’en-tête est inspecté puis supprimé ; les informations qu’il transportait (par exemple adresse IP, numéro de port, numéro de séquence) guident la livraison correcte jusqu’au processus applicatif. Cette suppression séquentielle s’appelle la décapsulation.

Implications pratiques, éthiques et philosophiques

• Modularité : l’empilement en couches offre une indépendance entre fonctions haut niveau (applications) et technologies d’acheminement, favorisant la compatibilité et l’évolution.
• Sécurité : l’encapsulation permet de masquer les données, ouvrant la voie au VPN, au tunneling et au chiffrement, mais pose la question éthique du « caché dans le caché » (ex. traffic illégal, exfiltration).
• Interopérabilité internationale : grâce à l’ISO, l’Internet est devenu un espace où des matériels hétérogènes respectent les mêmes standards de dialogue.

Auto-évaluation – synthèse des questions clés

  1. Le modèle OSI compte 7 couches.

  2. Le modèle TCP/IP en comporte 4.

  3. Sur la couche Transport, l’unité de données est le « segment ».

  4. La couche 2 OSI est la « liaison de données ».

  5. L’énoncé décrivant l’encapsulation comme inclusion des données d’un protocole dans un autre tout en limitant l’accès est véridique.

  6. Sur les couches Application, Présentation et Session, l’unité de données reste généralement un « message » ou « data ».

  7. La remontée Physique → Application s’appelle « décapsulation ».

Ces points récapitulent les notions fondamentales et servent de repères rapides pour vérifier la bonne compréhension du cours.


Imagine que tu veux envoyer un dessin à ton ami. C'est un peu comme envoyer un message avec un ordinateur ! Le modèle OSI, c'est comme une série de 77 petites boîtes. Chaque boîte fait une partie du travail pour que ton dessin arrive bien chez ton ami:

  1. Boîte 7 (Application): C'est toi qui fais le dessin ! C'est ce que tu veux envoyer.

  2. Boîte 6 (Présentation): Si ton ami parle une autre langue, cette boîte va traduire ton dessin pour qu'il le comprenne. Ou si ton dessin est trop grand, elle le rend plus petit pour l'envoyer.

  3. Boîte 5 (Session): Cette boîte dit: "Salut l'ami, je veux t'envoyer un dessin !" et s'assure que ton ami est prêt à le recevoir.

  4. Boîte 4 (Transport): Elle découpe ton grand dessin en petits morceaux si c'est trop gros, et les numérote pour que ton ami puisse tout remonter dans le bon ordre. Elle met une adresse spéciale dessus pour ton ami.

  5. Boîte 3 (Réseau): C'est le chemin que prendra ton dessin. Elle met l'adresse complète de la maison de ton ami pour que le dessin trouve le bon chemin.

  6. Boîte 2 (Liaison): Cette boîte met ton dessin dans une petite enveloppe pour le voyage, elle vérifie qu'il n'y aura pas d'erreurs en chemin et ajoute l'adresse de la rue.

  7. Boîte 1 (Physique): C'est la route, l'air, ou le câble qui va vraiment transporter ton dessin (ou plutôt des petits signaux invisibles pour l'ordinateur) jusqu'à la maison de ton ami.

Et quand ton dessin arrive, c'est l'inverse ! Chaque boîte de l'ordinateur de ton ami va ouvrir les enveloppes et remonter le dessin, boîte par boîte, jusqu'à ce que ton ami puisse le voir entier et joli !

explique le principe d’encapsulation à un enfant de 7 ans

Imagine que tu veux envoyer un secret ou un dessin super important à ton ami qui habite loin. Pour que ton secret arrive bien, tu vas le mettre dans plusieurs boîtes, une par une !

  1. D'abord, tu mets ton secret (ton dessin) dans une petite boîte. Sur cette boîte, tu peux écrire un petit mot pour ton ami, comme "C'est pour toi !"

  2. Ensuite, tu prends cette petite boîte et tu la mets dans une boîte un peu plus grande. Sur cette deuxième boîte, tu écris "Pour le chemin qui va chez mon ami".

  3. Après, tu prends cette deuxième boîte et tu la mets dans une troisième encore plus grande. Sur celle-ci, tu écris l'adresse de la maison de ton ami.

  4. Et puis, tu mets tout ça dans une dernière grande boîte pour la route. Sur cette dernière boîte, tu écris comment le facteur doit la transporter (par avion, par voiture…). Pour la sécurité, tu mets même un cadenas!

Ça, c'est l'encapsulation ! C'est comme mettre ton secret dans des poupées russes, chaque boîte ajoutant une information pour que le secret arrive en toute sécurité et au bon endroit. Chaque boîte ajoute une "étiquette" ou une "instruction".

Quand le facteur arrive chez ton ami, c'est l'inverse :

  1. Ton ami ouvre la plus grande boîte (celle avec le cadenas).

  2. Puis il ouvre la troisième boîte (celle avec l'adresse).

  3. Ensuite, la deuxième boîte (celle avec le chemin).

  4. Et enfin, la toute petite boîte pour trouver ton secret (ton dessin) !

C'est la décapsulation : il retire les boîtes une par une pour arriver au secret. Comme ça, le secret est protégé et arrive sans se perdre !

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Imperialism Rise in Nationalism • During the French and Industrial Revolution, nationalism continued to inspire nations to increase their political and economic power. • Nationalism became the ideal force in the political, economic, and cultural life in the world, becoming the first universal ideology-organizing all people into a nation state. Nationalism Defined • The strong belief that the interest of a particular nation-state is of primary importance. o Nation-State – a state where the vast majority shares the same culture and is conscious of it. It is an ideal in which cultural boundaries match up with political ones. • As an ideology, it is based on the idea that the individual’s loyalty and devotion to the nation-state surpass other individual/group interests. • Exalting one nation’s belief above all others and placing primary emphasis on promotion of its culture and interests, excluding the interests of others. Changing the World through a Nationalistic Vision • The French Revolution significantly changed the political world and how countries govern. • The Industrial Revolution significantly changed the economic world. • The Age of Imperialism (1870-1914) dramatically changed the political, economic, and social world. What is Imperialism? • Imperialism- The policy of extending the rule of authority of an empire or nation over foreign countries, or of acquiring and holding colonies and dependencies. Power and influence are done through diplomacy or military force. Reasons for Imperialism • There are 5 main motives for empires to seek to expand their rule over other countries or territories: 1. Exploratory • Imperial nations wanted to explore territory unknown to them. • The main purpose for this exploration of new lands was for resource acquisition, medical or scientific research. o Charles Darwin • Other reasons: o Cartography (map making) o Adventure 2. Ethnocentric • Europeans acted on the concept of ethnocentrism o Ethnocentrism- the belief that one race or nation is superior to others. • Ethnocentrism developed out of Charles Darwin’s “survival of the fittest” theory. Philosophers used the theory to explain why there were superior races and inferior races. o This became known as Social Darwinism. • Most imperial nations believed that their cultural values or beliefs were superior to other nations or groups. • Believed imperial conquest would bring successful culture to inferior people. 3. Religious • Imperial expansion promoted a religious movement of people setting out to convert new members of conquered territories. • With the belief that Christianity was superior, missionaries believed it was their duty to spread Christianity to the world. • Christian missionaries established churches, and in doing so, they spread Western culture values as well. • Typically, missionaries spread the imperial nation's language through education and religious interactions. 4. Political • Patriotism and Nationalism helped spur our imperial growth, thus creating competition against other supremacies. • It was a matter of national pride, respect, and security. • Furthermore, European rivalry spurred nations for imperial conquest. Since land equaled power, the more land a country could acquire the more prestige they could wield across the globe. • Empires wanted strategic territory to ensure access for their navies and armies around the world. • The empire believed they must expand, thus they needed to be defended. 5. Economic • With the Industrial Revolution taking place during the same time, governments and private companies contributed to find ways to maximize profits. • Imperialized countries provided European factories and markets with natural resources (old and new) to manufacture products. • Trading posts were strategically placed around imperialized countries to maximize and increase profits. o Such places as the Suez Canal in Egypt which was controlled by the British provided strategic choke hold over many European powers. o Imperial powers competed over the best potential locations for resources, markets, and trade. History of Imperialism • Ancient Imperialism 600 BCE-500 CE o Roman Empire, Ancient China, Greek Empire, Persian Empire, Babylonian Empire. • Middle Age Imperialism (Age of Colonialism-1400-1800s) o Great Britain, Spain, Portugal, France, Netherlands (Dutch), Russia. • Age of Imperialism 1870-1914 o Great Britain, Spain, Portugal, France, Germany, Belgium, Italy, Japan, United States, Ottoman Empire, Russia. • Current Imperialism...? o U.S. Military intervention (i.e. Middle East) o Russia’s Invasion of Ukraine. Imperialism Colonialism • Refers to political or economic control, either legally or illegally. • Refers to where one nation assumes control over the other. • Creating an empire, expanding into neighboring regions and expanding the dominance far outside its borders. • Where a country conquers and rules over other regions for exploiting resources from the conquered country for the conqueror's benefit. • Foreign government controls/governs a territory without significant settlement. • Foreign government controls/governs the territory from within the land being colonized. • Little to no new settlement established on fresh territory. • Movement to settle to fresh territory. Age of Colonialism WHEN? • Started around the late 1400s and ended around the late 1700s/early 1800s. WHY? • Primary Reason: European countries, wished to find a direct trade route to Asia (China & India) and the East Indies. o Quicker and relatively more effective than land routes over Asia. • Secondary Reason: Empire expansion (land power) WHO? • Countries involved: Great Britain, France, Spain, the Dutch & Portugal. • Individuals’ knowns as Mercantilists believed that maintaining imperialized territory and colonizing the region could serve as a source of wealth, while personal motives by rulers, explorers, and missionaries could therefore promote their own agenda. o This agenda being “Glory, God and Gold”. Mercantilism • Mercantilism was a popular and main economic system for many European nations during the 16th to 18th centuries. • The main goal was to increase a nation’s wealth by promoting government rule of a nation’s economy for the purpose of enhancing state power at the expense of rival national power. • It was the economic counterpart of political absolutism. Why did mercantilists want colonies? • Mercantilists believed that a country must have an excess of exports over imports. • By colonizing territory, it provided the nation with indispensable wealth of precious raw materials. • Therefore, the claimed territory served as a market and supplier of raw materials for the mother country. Which, in time, provided an excess of exports for the nation and thus created wealth. o Development of Trading Companies to support this economic system. Hudson Bay Company – (1670). Controlled primarily North America. o Dutch East Indie Trading Company (1682) o East Indian Trading Company (1600) o Royal African Trade Company (1672) WHERE? • European nations begun to colonize the America, India and the East Indies to create a direct trade route. • Great Britain was the leading power in India, Australia and North America, South Africa. • Spain colonized central and South America. • French held Louisiana, coastal land of Africa and French Guinea. • The Dutch built an empire in the East Indies. • The Portuguese was able to take control of present-day Brazil and the southern tip of South America and Japan. Age of Colonialism • As countries started to imperialize these regions, eventually the concept of colonization took hold: • This is what makes the Age of Colonialism extremely different! End of Colonialism • By 1800, colonialism became less popular • Why? o Revolutions (Spain, France & American) o The Napoleonic Wars o Struggle for nationalism and democracy. o Exhausted all money and energy to supervise their colonies. Waiting to wake again • Imperialism would stay quiet for close to 50 years before Great Britain and France’s economies revitalized. • The outbreak of the Industrial Revolution only encouraged and revitalized European nations to begin their conquest for new territory and resources. Age of Imperialism THE SCRAMBLE FOR AFRICA 1870-1914 Conditions Prior to Imperialism of Africa  European interest in exploiting Africa was minimal.  Their economic interests & profit in Africa primarily came through coastal trade that took place during the 1500-1700s.  The slave trade became the main source of European profit.  Furthermore, disease, political instability, lack of transportation and unpredictable climate all discouraged Europeans from seeking territory. Slave Trade & the Trans-Atlantic Slave Voyages  Forced labor was not uncommon during the 13-17th Centuries. Africans and Europeans had been trading goods and people across the Mediteranea for centuries.  This all changed from 1526 to 1867, as a new system of slavery was introduced that became highly “commercialized, racialized and inherited”  By 1690, the America and West Indies saw approximately 30,000 African people shipped from Africa. A century later, that number grew to 85,000 people per year.  By 1867, approximately 12.5 million people (about twice the population of Arizona) left Africa in a slave ship. What Changed? 1. End of the Slave Trade- Left a need for trade between Europe and Africa. 2. Innovation in technology- The steam engine and iron hulled boats allowed Europe 3. Discovery of new raw materials- Explorers located vast raw materials and resources and this only spurred imperialism with Europe in the wake of the Industrial Revolution. 4. Politics- Unification of Germany and Italy left little room to expand in Europe. Germany and Italy both needed raw materials to “catch up” with Britain and France so they looked to Africa. The Scramble for Africa  The scramble started in 1870.  Although some coastal land had previously been acquired before 1870, the need for territory quickly accelerated as European countries looked t get deeper into Africa.  Within 20 years, nearly all continents were placed under imperialistic rule. Who was Involved?  Great Britain  France  Germany  Italy  Portugal  Belgium  Spain (kind) Violent Affairs  Violence broke out multiple times when European nations looked to claim the same territory.  Germ Chancellor. Otto van Bismarck. Attempted to avert the possibility of violence against the European powers.  In 1884, Bismarck organized a conference in Berlin for the European nations. The Berlin Conference (1884-85)  The conference looked to set ground rules for future annexation of African territory by European Nations.  Annexation is the forcible acquisition and assertion of legal title over one state’s territory by another state, usually following military occupation of the territory.  From a distant perspective, it looked like it would reduce tensions among European nations and avert war.  At the heart of the meeting, these European countries negotiated their claims to African territory, made it official and then mapped their regions.  Furthermore, the leaders agreed to allow free trade among imperialized territory and some homework for negotiating future European claims in Africa was established. Further Path  After the conference, european powers continued to expand their claims in Africa so that by 1900. 90% of the African territory had been claimed. A Turn towards Colonization?  Upon the imperialization of African territory, European nations and little interest in African land unless it produced economic wealth.  Therefore, European governments put little effort and expertise into these imperialized regions.  In most cases, this emat a form of indirect rule. Thus, governing the natin without sufficient settlement and government from within the mother country. Some Exceptions  There were some exemptions through in Africa as colonization was a necessary for some regions i n Africa.  Some regions where diamonds and gold were present. Government looked to protectorate the regions and establish rule and settlement in the regions.  Protectorates: A state controlled and protected by another state for defense against aggression and other law violations. Would  Some examples include South Africa, Botswana, Zimbabwe and Congo. Conclusion  Although it may appear that the Berlin Conference averted war amid the African Scramble, imperialism eventually brought the world into worldwide conflict.  With the continued desire to create an empire by European nations. World War 1 would break out which can be linked to this quest at imperialism.
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