2020 is the start of a new decade. It’s also a leap year, meaning February will have 29 days instead of its usual 28. Though we’ve learned to expect this phenomena every four years, few people know much about its origins aside from the fact that it’s meant to make up for the fact that a normal year is made up of 365 and 1/4 days. Keep reading to learn more about the history and evolution of the leap day.
