When hip hop music first developed in the late 1970s, not many people knew about it. It was created in the poorest districts of New York City by African American and Latino teenagers as part of a hip hop scene that also produced breakdancing and graffiti art. Many of these young people were unemployed, but some found work as DJs in discos where they learned deejaying techniques like how to use two turntables and a DJ mixer to play records non-stop. Sometimes they'd also deejay at free block parties in their neighbourhoods where they'd play funk and disco tracks non-stop and ask a friend to act as their MC. The MC would introduce the DJ and encourage everyone to dance and have a good time. Some MCs tried to be more entertaining by talking in time to the beat of the music and using rhymes, and by doing this they invented rapping.