This document discusses the origins and key elements of hip hop culture. It began in the Bronx in the 1970s as more than just music - it is a culture comprised of deejaying, breakdancing, rapping, graffiti, and fashion. Deejaying was an important founding aspect, as DJs would play music that breakdancers enjoyed. DJs also partnered with MCs to further develop the music. The document then discusses how DJ Kool Herc innovated the technique of playing just the "break down" parts of songs to keep people dancing continuously.