Modern World History: Terms

Biological Globalization

This was the movement of plants, animals, diseases, and people between different parts of the world as a result of exploration, trade, and colonization. It increased after Europeans began crossing the Atlantic Ocean in the late 1400s. Europeans diseases like smallpox spread to the Americas and killed large numbers of Indigenous people who had little immunity to them. At the same time, crops and animals moved between continents, changing diets, farming, populations, and economies around the world.

Heliocentrism and Geocentrism

Geocentrism is the belief that the Earth is the center of the universe and that the Sun and other planets revolve around it. This idea was associated with the ancient Greek astronomer Ptolemy and was widely accepted in Europe for centuries. Heliocentrism is the idea that Earth and the other planets revolve around the Sun, which Nicolaus Copernicus argued in the 1500s. The debate between these models helped create the Scientific Revolution because it challenged traditional beliefs and encouraged people to use observation and mathematics to understand the universe.

Reconquista

The Reconquista was the long process through which Christian kingdoms in the Iberian Peninsula conquered territories controlled by Muslim rulers. It lasted for centuries, conventionally ending in 1492 when Ferdinand and Isabella conquered Granada, the last major Muslim-ruled kingdom in the peninsula. The Reconquista strengthened the Spanish Monarchy and encouraged the spread of Catholicism. The same year, Spain also sponsored Christopher Columbus’s voyage across the Atlantic, connecting the growth of Spanish power in Europe with overseas exploration.

Treaty of Tordesillas

The Treaty of Tordesillas was an agreement signed in 1494 between Spain and Portugal to divide newly claimed lands outside Europe. It established an imaginary dividing line in the Atlantic, with Spain generally receiving claims to lands west of the line and Portugal receiving claims to lands east of it. This helped Portugal establish its claim to Brazil, while Spain expanded across much of the Americas. The treaty shows how European powers used their political and religious authority to claim overseas territories without consulting the Indigenous people already living there.

Columbian Exchange

The Columbian Exchange was the transfer of plants, animals, diseases, people, and cultural practices between the Americas, Europe, Africa, and Asia following Columbus’s voyages beginning in 1492. Europeans brought horses, cattle, wheat, and deadly diseases to the Americas, while American crops like potatoes, maize, and tomatoes spread to other continents. These crops helped increase food supplies and populations in parts of the world. However, the exchange also caused catastrophic Indigenous population losses from disease and was connected to European colonization and the expansion of the Atlantic Slave Trade.

Aztec Empire

The Aztec Empire was a powerful Indigenous empire in Central Mexico that developed around the city of Tenochtitlan during the 1400s and early 1500s. It collected tribute from conquered communities and relied on agriculture, trade, and military power. In 1519, Spanish conquistador Hernán Cortés arrived in Mexico and formed alliances with Indigenous groups who opposed Aztec rule. The Spanish and their allies conquered Tenochtitlan in 1521, ending the empire and establishing Spanish colonial control over much of the region.

Kingdom of Kongo

The Kingdom of Kongo was a centralized African Kingdom located in parts of present-day Angola and the Democratic Republic of the Congo. It developed before European arrival and had established political institutions, trade networks, and a ruling monarchy. Portuguese explorers and merchants made contact with Kongo in the late 1400s, and some members of the royal family, including King Afonso I adopted Christianity. Relations with Portugal eventually became increasingly strained, particularly because of the Portuguese slave trade and the capture and sale of Kongo’s people.

Middle Passage

The Middle Passage was the brutal transatlantic journey that enslaved Africans were forced to make across the Atlantic Ocean to the Americas. It formed the middle part of the triangular trade system, with enslaved people transported primarily by European and American merchants to work on plantations and in other forms of forced labor. People were crowded into ships under horrific conditions, where diseases, starvation, violence, and death were common. The Middle Passage helped supply the forced labor that supported plantation economies and generated enormous wealth for slave traders and colonial societies.

Triangular Trade

Triangular Trade refers to Atlantic trading networks that connected Europe, Africa, and the Americas during the early modern period. A common simplified model described European manufactured goods being traded in Africa, enslaved Africans being transported to the Americas, and American plantation products such as sugar and tobacco being shipped to Europe. In reality, these routes were more complicated and varied over time. The system helped European empires and merchants accumulate wealth, but it also depended heavily on the enslavement and exploitation of African people.

Mughal Empire

The Mughal Empire was a Muslim-ruled empire established in South Asia in 1526 by Babur, a ruler descended from Central Asian and Mongol-Timurid lineages. It expanded across much of the Indian Subcontinent and became known for its powerful administration, agricultural wealth, and cultural achievements. Emperor Akbar promoted cooperation among different religious communities, while Shah Jahan commissioned major buildings such as the Taj Mahal. The empire reached great power and prosperity, although later political conflicts and European expansion weakened its authority.

Ottoman Empire

The Ottoman Empire was a major empire founded in the late 1200s that expanded across southeastern Europe, Western Asia, and North Africa. In 1453, Ottoman forces under Mehmed II conquered Constantinople, ending the Byzantine Empire and making the city an important Ottoman Capital. Under Suleiman the Magnificent, the empire reached a height of military, political, and cultural power. The Ottoman’s were predominantly Muslim and ruled over diverse religious and ethnic populations through an imperial administrative system.

Caliphate and Sultanate

A caliphate is a political community or state led by a Caliph, who claims leadership of the Muslim community, or ummah, following the Prophet Muhammad. A Sultanate is a state ruled by a sultan, a political ruler whose authority is primarily governmental and military, although the ruler may also have religious importance. These terms are related but do not mean the same thing: a caliph claims a particular kind of leadership over the Muslim community, while a sultan is a sovereign ruler. Understanding the distinction helps explain how political authority and religious legitimacy developed in different in different Muslim empires.

Ming Dynasty

The Ming Dynasty ruled China from 1368 to 1644, following the Mongol-led Yuan Dynasty. Ming rulers strengthened the imperial government, expanded agricultural production, and supported major construction projects, including work on the Great Wall and the Forbidden City. Under the Yongle Emperor, China sponsored the famous maritime voyages led by Zheng He during the early 1400s. Later, the dynasty restricted many forms of overseas activity, and internal problems, economic pressures, and rebellion contributed to its eventual collapse.

Tokugawa Shogunate

The Tokugawa Shogunate ruled Japan from 1603 to 1866, beginning when Tokugawa Leyasu became shogun. The shogunate established political stability after a long period of civil warfare and controlled the country’s powerful regional lords through a system known as sankin-kotai, which required daiymo to maintain residences in Edo and spend alternating periods there. Japan restricted most foreign contact, especially under its policies of controlled overseas interaction, although some trade continued. The Tokugawa period saw urban growth, commercial development, and cultural achievements before political pressures helped bring the shogunate to an end in the nineteenth century.

Shogun, Daiymo, Samurai, and Ronin

A shogun was Japan’s military ruler, while the emperor remained the symbolic and religious head of the country. Daiymo were powerful regional lords who controlled land and commanded Samurai warriors. Samurai were members of the warrior class who served lords and were associated with ideals of loyalty, discipline, and martial skill. A Ronin was a samurai without a lord, often because the lord had died or the samurai had lost his position.

Shame and Honor

Shame and Honor were important social ideas in many historical societies, including early modern Japan, where reputation, loyalty, and fulfilling social obligations could affect a person’s standing. Samurai culture particularly emphasized duty to one’s lord, family reputation, and appropriate behavior. Failing to meet expectations could bring shame not only on an individual but also on their family or social group. These values help explain certain historical practices and social pressures, although beliefs and behavior varied across people, periods, and communities.

Absolutist Monarchy

Absolutist Monarchy is a form of government in which a monarch claims extensive authority over the state, often arguing that their power comes from God or Hereditary right. A major example is Louis XIV of France, who strengthened royal control and made Versailles a center of political life. Absolutist rulers attempted to control nobles, collect taxes, maintain armies, and centralize government administration. However, their authority was not always unlimited in practice because monarchs still faced financial problems, social resistance, and other political constraints.

Constitutional Monarchy

A Constitutional Monarchy is a system in which a monarch’s powers are limited by a constitution, laws, or an established representative institution. Unlike an absolute monarch, a constitutional monarch cannot simply exercise unlimited personal authority. England’s political development, especially the Glorious Revolution of 1688 and the English Bill of Rights of 1689, helped strengthen Parliament’s role and limit royal power. Constitutional Monarchy became an important alternative to absolutism because it supported the idea that government should operate under established rules.

Estate System

The Estate System divided society into legally or socially defined groups, especially in pre-revolutionary France. The First Estate consisted of the clergy. The Second Estate of the nobility, and the Third Estate included everybody else, from wealthy merchants and professionals to peasants and urban workers. The First two estates enjoyed important privileges, including certain tax exemptions, while many members of the Third Estate carried a heavier tax burden. Resentment over inequality, financial problems, and political exclusion helped contribute to the French Revolution in 1789.

Declaration of the Rghts of Man and of the Citizen

The Declaration of the Rights of Man and of the Citizen was adopted by France’s National Constituent Assembly in August 1789 during the French Revolution. Influenced by Enlightenment ideas, it declared that people were born free and equal in rights and emphasized liberty, property, security, and resistance to oppression. It also argued that sovereignty belonged to the nation rather than resting entirely with the King. However, its claims of universal rights were not fully applied to women, enslaved people, or all colonial subjects, creating a major contradiction between revolutionary ideals and actual practice.

Social Contract

Social Contract theory argues that political authority is based on an agreement , whether actual or theoretical, among people who form a society and establish government. Thinkers such as Thomas Hobbes, John Locke, and Jean-Jacques Rousseau developed different versions of the idea. Locke emphasized natural rights and the right to resist a government that violated them, while Rousseau argued that legitimate government should express the general will of the people. These ideas challenged the belief that monarchs automatically possessed unlimited authority and influenced both the American and French Revolutions.

General WIll

The General will is a concept most closely associated with Jean-Jacques Rousseau and his 1762 work The Social Contract. It refers to the collective interest of the political community, rather than simply the sum of individuals’ private desires. Rousseau argued that legitimate laws should express this general will and that sovereignty ultimately belongs to the people. The concept influenced revolutionary ideas about popular sovereignty although debates over who could speak for the general will also raised questions about political freedom and majority power.

Guillotine

The Guillotine was a mechanical device used for executions that became strongly associated with the French Revolution. It was adopted as a standard method of execution in France in 1792 and was used extensively during the Reign of Terror, including for the execution of King Louis XVI in January 1793. Supporters initially presented it as a more standardized and supposedly human method of execution than other forms of capital punishment. Overtime, it became a symbol of revolutionary violence and the government’s efforts to eliminate people considered enemies of the Revolution.

Mecca and Medina

Mecca and Medina are two of the most important cities in Islam, located in present-day Saudi Arabia. Mecca is the birthplace of the Prophet Muhammad and the location of the Kaaba, toward which Muslims prayed which they visit during the Hajj pilgrimage. Medina is the city to which Muhammad migrated in 622 CE, an event known as the Hijra that marks the beginning of the Islamic calendar. In Medina, Muhammad established a growing Muslim community that combined religious leadership with political and social organization.

Khutba Network

A Khutba is a sermon, especially the formal Friday sermon delivered in a mosque. Historically, the ruler or caliph named in the Khutba could serve as a public sign of political legitimacy and recognition of authority. Across the Muslim world, the inclusion of a ruler’s name in Friday prayers could communicate allegiance, while changes to that practice could signal political independence or a transfer of power. These sermons connected communities and communicated authority across a wider Islamic political world.

Gran Colombia

Gran Colombia was a republic established in 1819 under the leadership of Simón Bolívar during the wars for independence from Spain. At its height, it included territories corresponding broadly to present-day Colombia, Venezuela, Ecuador, and Panama. Bolívar hoped that a united republic would be strong enough to protect independence and resist foreign domination. However, regional division, political disagreements, and disputes over central authority led to its breakup by 1831.

Capital

In history, Capital usually means wealth or resources that can be invested to produce more wealth, such as money, tools, machinery, buildings, and other productive assets. During the Industrial Revolution, capital helped business owners build factories, purchase machines, and hire workers. The growth of capitalism encouraged private investment, competition, and production for profit. Capital is different from labor, which refers to the human work used in production, and land or natural resources, which provide materials and space.