A strange little side quest
A small trivia drop for Capitals of the World: Level: The name Tetris combines a reference to four-square pieces with Pajitnov's interest in tennis. The broader history adds one more wrinkle. The Oregon Trail began in 1971 when three student teachers created a computer simulation to help Minnesota schoolchildren learn American history. The screen is modern; the urge to test skill, pattern and timing definitely is not.