Complex sentence: His entry into eastern martial arts began in the 1950s with Judo and Jiu-Jitsu and since then through the years Leo Fong has studied and practiced various martial arts styles to the point where he developed his own style called Wi Kuen Do.
Split into simpler sentences: His entry into eastern martial arts began in the 1950s with judo and jiu-jitsu. Through the years he studied and practiced various martial arts styles to the point where he developed his own style called Wi Kuen Do.