Break dancing started in 1969. Breakin' was originally known as "Rocking". "Old Style" Breakin' and B Boy'n consisted only of floor work ("Floor Rock" or "down rock") and "top rock" (dancing on two feet, like the Moonwalk). Floor Rock involved complicated leg moves. The new-style Breaking was different from the old. Breaking now includes not only Floor Rock but also Head spins, Backspins, Hand glides, and Windmills.
B-boying came from Bronx, NY. The term "B-boy" or "B-boying" was created by Kool Herc who was a DJ spinning at block parties in Bronx back in the days. B-Boys means break boys and they were called so because they dance to the break part of music. Later, by repeating this break part done by DJ, "breakbeats" was born
As the D.J.s invented new ways to elongate the break beats in the records, dancers had more time to invent and experiment. Soon moves like dropping down to the ground and poppin up again on beat became standard and gave these first generation of b-boys the nickname of "boie-oie-oings." Footwork came in when the boie-oie-oings started using their arms and hands to support their bodies in order to free the feet and legs to do gymnastic steps, shuffles and sweeps.