Kurt Browning - a quad toe loop that he landed in the 1988 World Championships in Budapest. At first, it was believed that Jozef Sabovcik had landed the first quad, but when replayed, they saw that...
well you walk up to the jump. Stop. get warmed up and strectch, make sure you are ready, don't want to pull anything. Then bend over, bend over really far, and jump forward swinging your arms forward...