Rock and Roll is born.
Civil Rights is born too.
Elvis; technically he could probably be placed in 1953 as his true starting point, which puts him with Marlon Brando of the Wild One and also conveniently gives us a 24 to work with (1953-1977)
Bill Haley and his Comets released Rock around the Clock first but it took a second release in 1955 for that one to really take off.
Elvis meanwhile started to see moderate chart success right away with That’s Alright Mama, although his greatest early responses came when people actually saw him do the number.
TV becomes part of American living rooms, bringing Pop Culture to the world every day.