Simplify the following text for a Grade 7 native English-speaking person.
Original: Throughout the 1930s , 1940s and 1950s it was home to some of the biggest boxing , wrestling and roller derby events and has become somewhat of a landmark for boxing history .
Simplified: In the 1930s , 1940s and 1950s it was home to some of the biggest boxing , wrestling and roller derby events .