History Schmistory: October 1. Back off, sound!!
Friday, October 1, 2021
1969: A Concorde turbojet-powered supersonic passenger airliner breaks the sound barrier for the first time. Sound barrier calls shenanigans and demands a rematch.
![U.S. Navy F/A-18 within the sound barrier By Ensign John Gay, U.S. Navy [Public domain], via Wikimedia Commons](http://www.teammarcopolo.com/blog/wp-content/uploads/2013/10/800px-FA-18_Hornet_breaking_sound_barrier_7_July_1999_-_filtered.jpg)
U.S. Navy F/A-18 within the sound barrier
By Ensign John Gay, U.S. Navy [Public domain], via Wikimedia Commons
