During Coolidge's term, the United States and 14 other nations signed the Kellogg-Briand Pact. However, there was no way to enforce the effort to ban war.
Henry Ford built the Model T, a car many people could afford. He reduced costs using a moving assembly line. Ford raised wages and reduced the workday to eight hours. He also hired workers that other factories would not hire, such as African Americans and people with disabilities.
Fans packed baseball stadiums and other athletic events. George Herman "Babe" Ruth broke home-run records. He brought many new fans to the sport of baseball.