AMSCO 1.3 European Exploration in the Americas Notes

Overview

AMSCO Topic 1.3, "European Exploration in the Americas," explains why Europeans started crossing the Atlantic in the late 1400s after centuries of having no contact with the Americas. The chapter covers the big causes of exploration (Renaissance technology, religious conflict, trade competition, and the rise of nation-states) and then walks through how Spain, Portugal, England, and France staked their first claims in the New World. This is core Period 1 (1491-1607) material, and it answers the question the AP exam loves to ask: what motivated European exploration and conquest?

The shorthand to remember is "God, gold, and glory." Europeans explored to find new sources of wealth, to compete economically and militarily with rival kingdoms, and to spread Christianity. Everything in this chapter feeds one of those three motives.

Quick context: Vikings reached Greenland and North America around the year 1000, but those voyages had no lasting impact. Columbus's voyages, starting in 1492, are what created ongoing contact across the Atlantic. If you need the pre-contact setup first, review the AMSCO 1.1 contextualization notes.

Changes in Thought and Technology

The Renaissance made long ocean voyages possible. This rebirth of classical learning in the 15th and 16th centuries sparked artistic and scientific activity across Europe, and a lot of the key technology came from Europeans improving on other people's inventions:

• Gunpowder, invented by the Chinese, adopted and improved by Europeans
• Sailing compass, picked up from Arab merchants, who learned about it from the Chinese
• Major European improvements in shipbuilding and mapmaking
• The printing press, invented in the 1450s, which spread knowledge (including news of discoveries) rapidly across Europe

The takeaway for essays: exploration wasn't just bravery. It was a technology story. Without better ships, navigation tools, and maps, nobody crosses the Atlantic on purpose and comes back.

Religious Conflict as a Motive

Religion pushed exploration in two big ways: Catholic Spain's triumph at home and the Protestant Reformation splitting Europe.

Catholic Victory in Spain

In the 8th century, Muslim invaders from North Africa known as the Moors conquered most of what is now Spain. Spanish Christians spent centuries reconquering the land and building independent kingdoms. Then everything came together fast:

• 1469: Isabella, queen of Castile, married Ferdinand, king of Aragon, uniting two of the largest Christian kingdoms
• 1492: Spain conquered Granada, the last Moorish stronghold
• 1492: That same year, Isabella and Ferdinand funded Columbus's first voyage

That timing matters. A newly unified, confident, intensely Catholic Spain immediately turned its energy and religious zeal outward, toward the Atlantic.

Protestant Revolt in Northern Europe

In the early 1500s, Christians in Germany, England, France, Holland, and other northern European countries revolted against the pope's authority. This Protestant Reformation triggered religious wars that killed many millions of people in the 16th and 17th centuries.

The connection to exploration: competition. The Catholics of Spain and Portugal and the Protestants of England and Holland each wanted to spread their own version of Christianity to Africa, Asia, and the Americas. So a religious motive got layered on top of the political and economic ones.

Expanding Trade and New Routes to Asia

The economic motive came from fierce competition among European kingdoms for trade with Africa, India, and China. For centuries, merchants traveled a long, slow, expensive overland route from Venice and Constantinople to eastern China. In 1453, the Ottoman Turks seized Constantinople and blocked that land route. Europe needed a sea route to Asia, fast.

Two possible routes

• South and east: sail down the West African coast, around Africa, then east to Asia. Portugal figured out this was the shortest path. Voyages sponsored by Portugal's Prince Henry the Navigator opened up the route around South Africa's Cape of Good Hope, and in 1498 Vasco da Gama became the first European to reach India by sea.
• West across the Atlantic: Columbus's plan. He believed sailing west would be a shorter route to Asia. He was wrong about the geography, but his 1492 voyage connected Europe and the Americas permanently.

Slave trading begins

In the 15th century, the Portuguese began trading for enslaved people from West Africa and used their labor on new sugar plantations on the Madeira and Azores islands. Producing sugar with enslaved labor was so profitable that Europeans later copied the system in their American colonies. This is the origin point of a pattern you'll trace through Topic 1.5 on labor and slavery in the Spanish colonies and across the whole course.

The Rise of Nation-States

Europe's political map was reorganizing in the 15th century, and that reorganization funded exploration. Two trends were happening at once:

• Small kingdoms were uniting into larger ones (Castile + Aragon = the core of modern Spain)
• Huge multiethnic empires like the Holy Roman Empire were starting to break apart

What replaced them were nation-states: countries where most people shared a common culture and a common loyalty to a central government. Monarchs like Isabella and Ferdinand of Spain, Prince Henry the Navigator of Portugal, and the rulers of France, England, and the Netherlands depended on trade to bring in revenue and on the church to justify their right to rule. That's why monarchs, not private merchants, sponsored the big voyages. Exploration was state policy.

Dividing the Americas: Competing Claims

Spain and Portugal claimed first, the pope drew the line, and England and France challenged everyone later. Here's how the claims shook out.

Spanish and Portuguese claims

Image source: João Teixeira Albernaz I / Public domain

Spain and Portugal were the first European kingdoms to claim territory in the Americas, and their claims overlapped. Both being Catholic, they asked the pope to settle it:

• 1493: The pope drew a north-south line of demarcation on the world map. Spain got everything west of the line, Portugal everything east.
• 1494: The two kingdoms moved the line a few degrees west and signed the Treaty of Tordesillas. The new line passed through what is now Brazil, which (along with Portuguese exploration) established Portugal's claim to Brazil. Spain claimed the rest of the Americas.

Other European countries soon ignored this arrangement entirely.

English claims

England's earliest claims rested on John Cabot, an Italian sea captain sailing for King Henry VII, who explored the Newfoundland coast in 1497. But England didn't follow up for decades. The monarchy spent the 1500s preoccupied with the religious conflict that followed Henry VIII's break with the Catholic Church.

England re-engaged under Queen Elizabeth I in the 1570s and 1580s:

• Sir Francis Drake attacked Spanish ships, seized their gold and silver, and even raided Spanish settlements on the coast of Peru
• Sir Walter Raleigh attempted a colonial settlement at Roanoke Island off the North Carolina coast in 1587. It failed.

French claims

France's claims came from two sponsored voyages:

• Giovanni da Verrazzano (1524), an Italian navigator who explored part of North America's eastern coast (including New York harbor) while searching for a northwest passage through the Americas to Asia
• Jacques Cartier (1534-1542), who explored the St. Lawrence River extensively

Like England, France was slow to colonize. During the 1500s the French monarchy was tied up in European wars and internal religious conflict between Catholics and French Protestants called Huguenots. France only got serious about North America in the next century.

The pattern to notice: Spain and Portugal moved first and fast; England and France had claims on paper but were stalled by religious conflict at home. That head start explains why Spain built a massive American empire, which is exactly where Topic 1.4 on the Columbian Exchange and Spanish conquest picks up.

Key Terms to Know

Practice and Next Steps

Keep these motives organized as causes: economic (blocked trade routes, competition for wealth), religious (Catholic vs. Protestant rivalry), and political (nation-states funding voyages). That cause-and-effect framing is exactly what Period 1 questions test.

• Review the Topic 1.3 European Exploration in the Americas course study guide for the College Board-aligned version of this material
• Continue to AMSCO 1.4 on the Columbian Exchange and Spanish conquest, or browse all the APUSH AMSCO notes
• Test yourself with APUSH guided practice questions
• Drill vocab in the APUSH key terms glossary