It has to do with trains, map makers, and politics.
Johnny Harris – https://www.youtube.com/watch?v=g52A2CPEi4A&t
whoops! I made a little error. I made it look like the North and South lines go up to 180 degrees which they don’t. they go to 90 degrees north (North Pole) and 90 degree south (South Pole) sorry about that!