The first breaking of the sound barrier was during World War 2. One can find more information from Wikipedia. By 1950s, new aircraft broke the sound barrier.
It's not illegal, just frowned uopn.
Jam starts with breaking glass (a window being smashed).
Murray Spivak made the first sound film.
First production talkie- or sound film. this was by Warner Brothers who controlled the process, which made cartoons ( Bugs Bunny) and Newsreels live and vivid- and also a remote forerunner, process wise- of TV newcasting.
Sound began to be attached to motion pictures in the middle 1920s and synchronized sound started in the late 1920s.
Al Jolson
It was referred to as breaking the sound barrier.
Breaking the Sound Barrier won the Oscar for Sound in 1952.
by breaking the sound barrier in a plane
Modern Marvels - 1994 Breaking the Sound Barrier 9-30 was released on: USA: 16 July 2003
he did this by breaking the sound barrier (also known asthe sound of speed)
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Breaking the sound barrier was an important milestone because it meant that various technical challenges of flying at high speed had been mastered. The Bell X-1, like other aircraft would buffet greatly, malfunction or explode as they approached the sound barrier. The Bell X-1 was the first known aircraft able to successfully fly in level flight at Mach I which is term for the speed of sound. This achievement is considered by many to be the first step of the Space Age.
Thunder is the sound of the lightening cracking the sound barrier as it is breaking through the earths atmosphere.
Breaking the sound barrier in the X-1 rocket plane.
The Bell X-1 was Chuck Yeager's ride for his record-breaking flight. A link can be found below.
To the best of my knowledge, the sound barrier has never been broken by an automobile.
I'm thinking that it was known as breaking the racial barrier when Jackie Robinson first played for the Brooklyn Dodgers.