Claim: In 1964, Muhammad Ali claimed the heavyweight boxing title.
Evidence: At age 22 in 1964 , he won the WBA , WBC , and lineal heavyweight titles from Sonny Liston in a big upset.
The World Boxing Association -LRB- WBA -RRB- is the oldest and one of four major organizations which sanction world championship boxing bouts , alongside the IBF , WBC and WBO.
The World Boxing Council -LRB- WBC -RRB- is one of four major organizations which sanction world championship boxing bouts , alongside the International Boxing Federation -LRB- IBF -RRB- , World Boxing Association -LRB- WBA -RRB- and World Boxing Organization -LRB- WBO -RRB-.