This Day in History 1/21/21
Hello, and welcome to This Day in History. Here’s what happened on January 21st. Amid recent news that aviation startup Boom Supersonic will test out its new faster-than-sound jet later this year, we look back to this day in 1976, when the world’s first supersonic passenger jet, the Concorde, took its first public flights. At their cruising speeds, the innovative Concordes flew well over the sound barrier at 1,350 miles an hour, cutting air travel time by more than half.