Why The Prime Meridian Isn't At 0º?

The Prime Meridian isn’t at 0º because humans chose where to put it, just like choosing a starting line for a race.

Imagine you and your friends are playing a game of tag in a big park, but no one picks a clear spot to start. Someone says, “Let’s all begin here!”, and they pick a tree in the middle. That tree becomes your starting line. It doesn’t have to be perfect; it just needs to work for everyone.

That’s what happened with the Prime Meridian. In 1884, people from many countries met and decided where to put the starting line for longitude, like picking a tree in the park. They chose Greenwich, England, because that’s where a big clock was already running, and it worked well for many places around the world.

But if they had picked another spot, like somewhere in France or China, the Prime Meridian would be at a different number! So 0º isn’t magic, it's just a choice people made long ago. The Prime Meridian isn’t at 0º because humans chose where to put it, just like choosing a starting line for a race.

Imagine you and your friends are playing a game of tag in a big park, but no one picks a clear spot to start. Someone says, “Let’s all begin here!”, and they pick a tree in the middle. That tree becomes your starting line. It doesn’t have to be perfect; it just needs to work for everyone.

That’s what happened with the Prime Meridian. In 1884, people from many countries met and decided where to put the starting line for longitude, like picking a tree in the park. They chose Greenwich, England, because that’s where a big clock was already running, and it worked well for many places around the world.

But if they had picked another spot, like somewhere in France or China, the Prime Meridian would be at a different number! So 0º isn’t magic, it's just a choice people made long ago.