Fun fact: Some other major events that occur every four years — like the U.S. presidential elections and the Summer Olympics — also typically take place during leap years…According to the National Geographic, the mismatch between human calendars and the orbit of the Earth and the sun caused “chaos” for centuries, leading ancient societies in Egypt and China, and later the Roman Empire, to come up with workarounds. But nothing quite worked — until Pope Gregory XIII implemented the Gregorian calendar and its leap-year system.”

Source: Washington Post February 29, 2024 16:13 UTC