Hey there! Ready to travel back in time? Let's explore how brave sailors connected the world starting in 1450!
Between 1450 and 1750, European countries started exploring the wide oceans. They wanted to find new trade routes to Asia to buy valuable spices and silk.

Three main goals drove this expansion: Gold, Glory, and God. Kings and explorers wanted wealth, national pride, and to spread their religion across the globe.
This movement created the Columbian Exchange. This was a massive trade of plants, animals, and ideas between the Old World (Europe) and the New World (the Americas).
The exchange changed global diets with new crops, but it had a tragic side. Europeans brought deadly diseases that devastated Native American populations.
Explain how the introduction of the potato to Europe is an example of the impact of the Columbian Exchange.
- Identify the origin: The potato was originally grown by Native Americans in the Andes Mountains of South America.
- Trace the movement: Spanish explorers discovered the crop and brought it back to Europe on their ships.
- Analyze the impact: The potato grew well in cold European soils. It became a cheap, nutritious food source for millions of people.
- Connect to population change: This new food source caused Europe's population to grow rapidly over the next century.
