Easy mistake to make. Sometime after the end of the cold war, US schools started properly using the Prime Meridian to define the edge of the Western Hemisphere.

Easy mistake to make. Sometime after the end of the cold war, US schools started properly using the Prime Meridian to define the edge of the Western Hemisphere. Growing up in the 70s and 80s, the Western Hemisphere and "the West, including Western Europe" were basically considered one and the same. I was a little confused by my kid's geography homework until I realized this change.