ELI5: Explain Like I'm 5

Parallel 54°40′ north

Parallel 54°40’ north is an imaginary line that goes all the way around the earth at a certain distance away from the equator. It’s kind of like a belt around the earth that’s 54 degrees and 40 minutes north of the equator. It’s called a parallel because all the points on this line are the same distance away from the equator, just like the lines on a map that run horizontally.

The reason we care about this line is because it marks an important point in history. Back in the 1800s, the United States and Great Britain were arguing about where the border between their two countries should be in what is now Canada. The US said the border should be at parallel 49, which is a little lower than parallel 54°40’ north. But Great Britain said the border should be at parallel 54°40’ north. The two countries couldn’t agree and there was a lot of tension and even talk of war.

Eventually, the two countries decided to compromise. They agreed to set the border at parallel 49, like the US wanted, but they also agreed to share the land north of parallel 54°40’ north. This was called the Oregon Territory and it became a kind of peaceful “no man’s land” where both countries could explore and trade without fighting over it.

So, even though it’s just an imaginary line on a map, parallel 54°40’ north is a symbol of cooperation and compromise between two countries. It’s like a reminder that sometimes it’s better to share and work together instead of fighting over everything.