Robert Herman Julius Friedrich, better known by the ring name Ed "Strangler" Lewis, was an American professional wrestler and trainer. During his wrestling career, which spanned four decades, Lewis was a four-time World Heavyweight Wrestling Champion and overall recognized officially as a five-time world champion. Considered to be one of the most iconic and recognizable sports stars of the 1920s, often alongside boxer Jack Dempsey and baseball player Babe Ruth, Lewis notably wrestled in over 6,000 matches and lost only 32 of them.

The World Heavyweight Wrestling Championship was the first recognized professional wrestling world heavyweight championship created in 1905 to identify the best catch as catch can wrestler in the world.