How We Mapped the World Before Satellites?

People used maps and travel stories to figure out how big and shaped the world was, long before they had satellites in space.

Imagine you're playing with your friends, and each of you has a piece of string. You all walk around in different directions, one goes north, another east, and so on, and when you come back, you tie your strings together at the center. That’s like how ancient travelers mapped the world.

They would go far away from home, sometimes for years, and then write down everything they saw: mountains, rivers, the position of the sun, and even stars in the sky. They shared these stories with other people who had gone on their own long trips. Slowly, a big picture of the world started to form, like putting together pieces of a puzzle.

At first, everyone thought the Earth was flat, like a plate. But as more travelers came back with their stories and measurements, people began to realize the world was actually round, like a ball. It took hundreds of years and many brave explorers, but eventually, they had a pretty good idea of how big and shaped our planet was.

Now you can imagine it like this: if your whole class walked in different directions and came back with their own stories, together you could draw the shape of the world, just like ancient people did!