Daily history games: the Daily History Challenge
Human Saga posts one short history puzzle every day, and it is the same puzzle for everyone in the world. It takes about a minute. The puzzle rotates through four ways to play, so each day of the week has its own game. Play every day to build a streak, share your score with friends, and replay any past puzzle from the archive. Every answer links to the full story and a map of the world at that moment.