Hip-hop began in the South Bronx in 1973 as a way for disaffected youth to channel their frustrations into art rather than violence. DJ Kool Herc pioneered extending breakbeats using two turntables, sparking the hip-hop revolution. Cornell University has the largest collection of hip-hop artifacts and recordings in the world and works to document hip-hop's history from its originators. Hip-hop grew from its roots in the Bronx to become a global phenomenon, adapting to local cultures worldwide and bringing more people together across differences than any politicians.