MOSLEY: This month marks 50 years of hip-hop. To celebrate, all this week we’ll be featuring interviews with some of the most influential rappers and DJs over the last 50 years. We’ll start at the beginning with DJ Kool Herc, who, on August 11, 1973, DJ’d an end-of-summer party in his Bronx apartment’s rec center. Little did he know that it was the beginning of hip-hop as we know it. Kool Herc was the first DJ to isolate and repeat the breaks – the most danceable beats in a record – to rev the party and keep the dancers going. Although Herc is often credited as the father of hip-hop, he didn’t record and, for years, remained relatively unknown.