The border is technically man-made: It was drawn on a map by the governments of America ... the border between the U.S. and British North America — later Canada — at the 49th parallel, from ...

Sheinbaum Pardo projected a map authored in 1607 that labels a rough drawing of North America ... at the U.S.-Mexico border. "We're going to call it Mexican America," she said.

If you look at a map, they drew an artificial line right through ... Years later, the Convention of 1818 officially established the border between the U.S. and British North America — later Canada — ...

The U.S.-Canadian border is the longest international border in the world, stretching 5,525 miles across North America. Much of the border looks like a straight line because it essentially is ...