On This Day: September 12

3 verified moments happened on September 12. Here they are in the order they actually happened — the same kind of puzzle you solve in Whensly every day.

1. 1958💾 Jack Kilby demonstrates the first working integrated circuit at Texas Instruments, the seed of the microchip age.History · Source: Computer History Museum, 'First Integrated Circuit' (Sep 12 1958)
2. 1979 Pietro Mennea sets a 200m world record of 19.72 in Mexico City that stands nearly 17 yearsSports · Source: Wikipedia 'Pietro Mennea'; Olympics.com: 200m world record (19.72) set 12 September 1979 at the Universiade
3. 2003🎮 Valve launches the Steam client, its digital storefront and updater for downloading and playing games.Technology · Source: Wikipedia, 'Steam (service)' (Sep 12 2003)