In which year was this American heavyweight boxer born who was active in the 1950s through the 1970s, and was defeated by the former Canadian professional boxer George Chuvalo?
George Chuvalo George Louis Chuvalo, CM (born September 12, 1937) is a retired Canadian professional boxer who was a five-time Canadian heavyweight champion, and two-time world heavyweight title challenger. Chuvalo, who is considered by many to have one of the best chins in boxing history, was never knocked down in his amateur career or his 93-fight professional career and was ranked #4 on ESPN's greatest chin in boxing history list. Chuvalo lost to Hall of Fame heavyweights such as Floyd Patterson, Muhammad Ali, Joe Frazier and George Foreman, but was credited for his spirited performances. He did defeat top contenders such as Yvon Durelle, Doug Jones, Jerry Quarry and Cleveland Williams. He fought for the world title twice, losing a controversial decision to Ernie Terrell and another decision in his first fight with Ali.
Lennox Lewis Lennox Claudius Lewis, {'1': ", '2': ", '3': ", '4': "} , {'1': ", '2': ", '3': ", '4': "} (born 2 September 1965) is a former professional boxer who competed from 1989 to 2003. He is a three-time world heavyweight champion, a two-time lineal champion, and remains the last heavyweight to hold the undisputed title. Lewis holds dual British and Canadian citizenship; as an amateur he represented Canada at the 1988 Summer Olympics, winning a gold medal in the super-heavyweight division after defeating future world champion Riddick Bowe in the final.