- Maurits Cornelis Escher (Dutch pronunciation: [ˈmʌurɪt͡s kɔrˈneːlɪs ˈɛʃər]; 17 June 1898 – 27 March 1972) was a Dutch graphic artist who made woodcuts, lithographs, and mezzotints, many of which were inspired by mathematics. Despite wide popular interest, for most of his life Escher was neglected in the art world, even in his native Netherlands. He was 70 before a retrospective exhibition was held. In the late twentieth century, he became more widely appreciated, and in the twenty-first century he has been celebrated in exhibitions around the world.
- Pitfall! (Atari 2600) online game (atarionline.org)
Pitfall! is a platform video game designed by David Crane for the Atari 2600 and released by Activision in 1982. The player controls Pitfall Harry and is tasked with collecting all the treasures in a jungle within 20 minutes. The world consists of 255 screens which are horizontally connected in a flip screen manner. Each screen has one or more hazards: quicksand, tarpits, rolling logs, crocodiles, snakes, scorpions, campfires, and swinging vines. Pitfall! received positive reviews upon release and is now considered one of the greatest video games ever made. It is one of the best-selling games on the Atari 2600, with over four million copies sold. It was the top video game on the Billboard charts for more than a year, and helped define the flip-screen platform game genre. All versions of the game sold over 5 million copies worldwide.