Disco Demolition Night

The Liver of Piacenza , a bronze diagram of the sheep's liver found near Piacenza with Etruscan inscriptions

In 1974, the Arecibo Observatory was used to send the first known intentional radio message transmission into space

01The 1974 Arecibo Message was aimed at globular cluster M13 — 25,000 light-years away, arrival date roughly 26,974 AD.
02Stephen Hawking publicly warned that contacting aliens could be analogous to Native Americans meeting Columbus — and we know how that ended.
03METI International transmitted 'Sonar' toward GJ 273, a nearby star, in 2017 without any international consensus or oversight body approving it.

A laundry copper

Piles of new Notgeld banknotes awaiting distribution at the Reichsbank during the hyperinflation

On July 12, 1979, a crate of disco records exploded on the Comiskey Park field between doubleheader games; fans tore up the turf, and the White Sox forfeited the second game to the Tigers.