Chapter 1 | The Americas, Europe, and Africa Before 1492: 2026MSP-MHIST-101-3955

Human Migration and the Bering Land Bridge:
- Ca. 13,000 to 7,000 BCE: Paleo-Indians migrated across Beringia, a land bridge connecting Siberia and Alaska, following Pleistocene megafauna. As the ice melted, these populations dispersed throughout North and South America, developing distinct linguistic and cultural groups.
Agricultural Revolution:
- Ca. 5,000 BCE: Corn (maize) was first domesticated in the Tehuacan Valley of Mesoamerica. This transition from hunter-gatherer societies to sedentary agricultural communities allowed for population growth and the development of specialized labor.
- The Three Sisters: The cultivation of maize, beans, and squash together created a symbiotic ecosystem that maintained soil fertility and provided a balanced diet of carbohydrates and proteins.

The Olmec (The Mother Culture):
- Ca. 1200 to 400 BCE: Located along the Gulf Coast of Mexico, the Olmec are known for monumental stone heads and the development of the first writing systems and calendars in the Americas.
Mayan Civilization:
- Timeline: Ca. 2,000 BCE to 900 CE.
- Contributions: Developed a complex hieroglyphic writing system, an advanced understanding of astronomy, and a mathematical system that included the concept of zero. Notable city-states include Tikal, Palenque, and Chichn Itz.
The Aztec Empire (Mexica):
- Ca. 1325 to 1521: Based in Tenochtitln (built on an island in Lake Texcoco), the Aztecs utilized chinampas (floating gardens) to sustain a population of over 200,000. Their society was highly stratified and centered on religious rituals, including large-scale human sacrifice to appease the sun god, Huitzilopochtli.
Mississippian Culture and Cahokia:
- Ca. 800 to 1400: Cahokia, located near modern-day St. Louis, was a major urban center with a population of up to 30,000. It featured Monks Mound, a massive earthen structure that served as the center of religious and political life.

The Inca Empire:
- Ca. 1400 to 1532: Stretching across the Andes, the Inca managed their vast empire (Tahuantinsuyu) through an extensive road network exceeding 25,000 miles. They utilized quipus (knotted strings) for accounting and the mita system for mandatory public service.
West African Empires:
- Mali Empire (ca. 1230 to 1600): Known for its immense wealth from the gold and salt trade. Mansa Musa, perhaps the wealthiest individual in history, made a famous pilgrimage to Mecca in 1324, bringing so much gold that he caused inflation in Egypt.
- Songhai Empire: Succeeded Mali as the dominant power, with Timbuktu serving as a global center for Islamic learning and trade.

Crisis and Transformation:
- The Black Death (1346–1353): A bubonic plague pandemic that killed an estimated 30\% to 60\% of Europe's population. The resulting labor shortage triggered the decline of feudalism and the rise of a merchant class.
- The Renaissance and Reconquista: The cultural rebirth in Europe and the completion of the Reconquista in Spain (1492) provided the intellectual curiosity and political stability necessary for overseas expansion.

Architecture and Engineering:
- Machu Picchu: A high-altitude Incan estate showcasing precision masonry where stones were fitted together without mortar.
- Anasazi/Puebloans: Built intricate cliff dwellings (e.g., Mesa Verde) that provided natural insulation and defense against Raiders.

Prior to 1492, the Americas, Africa, and Europe were home to sophisticated societies with deeply integrated trade networks (like the Trans-Saharan trade) and complex governance. The arrival of Christopher Columbus in the Bahamas in 1492 facilitated the Columbian Exchange, leading to a permanent transformation of global ecology, demography, and economy.