History of hip hop and reggae
Jamaican born DJ Kool Herc moved to New York in the late 1960's and brought with him the Jamaican tradition of "toasting", which involved reciting improvised rhymes over instrumental sections of reggae records. He used twin turntables and cut back and forth between two seperate records to create a new sound. He would chant things like "Throw your hands in the air/And wave'em like ya just don't care!". This type of crowd pleaser was known as "rapping" to the crowd. At that time rap was not yet known as 'rap' but called 'MCing'. He later turned his attention to DJing and let two friends Coke La Rock and (the orginial) Clark Kent handle the mic. This was rap music's first MC team. They became known as Kool Herc and the Herculoids.
Grand Wizard Theodore was the first DJ to scratch which he discovered accidently. Playing his music too loud during a practice session, while his mother was yelling, he held back the record and it began to move back and forth in the earphones. He went on to experiment with different records trying to create a sound where people could understand it. He has since been awarded by the International Turntable Foundation for creating the scratch.