The Ferris wheel may not have been a new idea, but the revolving structure offered fun—from the fairgrounds to the classroom.

Not so fast, Wordle. The Fifteen Puzzle, a challenge that inspired poetry, has obsessed fans for more than a century.

Ada Lovelace wrote extensive notes on the world’s first computer. Her innovations foreshadowed those used in twentieth-century PCs.

The fate of a free throw is set the instant the ball leaves the player’s fingertips.