Is there a picture of it?
The Sherman Anti- Trust act originally designed to reinforce the American ideals of "free trade", The Sherman Anti-Trust Act sought to bust up monopolies.
So you want to start out with facts first then build on it?
How it affected the 20th century :
It influenced the way that people think about such important social issues as race, gender, and class. It played an important role in the political process, particularly in shaping national election campaigns. TV programs and commercials have also been mentioned as major factors contributing to increased American materialism (a view that places more value on acquiring material possessions than on developing in other ways). Finally, television helped to spread American culture around the world.