A strange little side quest
A small trivia drop for Get It Filled: Alexey Pajitnov created Tetris in 1984 after drawing inspiration from pentomino puzzles, then simplified the idea around shapes made from four squares. A second detail makes the picture even better: Nintendo's Donkey Kong arrived in 1981 and introduced the character first known as Jumpman, who later became Mario. It is a good reminder that simple game mechanics can carry a surprising amount of history.