Today is Saturday, Dec. 21, the 356th day of 2024. There are 10 days left in the year. Today in history: On Dec. 21, 1988, 270 people were killed when a terrorist bomb exploded aboard a Pan Am Boeing 747 over Lockerbie, Scotland, sending wreckage crashing to the ground. Also on this date: In 1620, Pilgrims aboard the Mayflower went ashore at present-day Plymouth, Massachusetts, for the first time. Related Articles National News | A Missouri judge says the state’s abortion ban isn’t enforceable, ensuring legal abortions National News | Amazon and Starbucks workers are on strike.