UNITED STATES This Tuesday, many Americans will celebrate Cinco de Mayo. “But if you ask why is anyone celebrating, no one knows,” says one expert. (Nat Geo News). Learn the facts about Cinco de Mayo with our super-short This Day in Geographic History article. Teachers, scroll down for a quick list of key resources in our Teachers’ Toolkit, including a link to today’s MapMaker Interactive … Continue reading 5 Facts about Cinco de Mayo