Jan. 3, 1920: The Yankees purchase the contract of Babe Ruth from the Boston Red Sox for $125,000 and a $350,000 loan against the mortgage on Fenway Park.
September, 1921: The Yankees clinch their first AL pennant.
May 5, 1922: Construction begins on Yankee Stadium.
May 21, 1922: Col. Ruppert buys out Col. Huston for $1.5 million.
Apr. 18, 1923: Yankee Stadium opens with a 4-1 win over the Boston Red Sox before a reported crowd of 74,200. Babe Ruth hits the Stadium's first home run.
June 1, 1925: Lou Gehrig begins his streak of 2,130 consecutive games played, pinch-hitting for Pee Wee Wanniger.
Sept. 30, 1927: Babe Ruth breaks his own Major-League record with his 60th home run on the season's final day.
Apr. 20, 1928: The Yankees' sixth season at Yankee Stadium opens with the left-field stands enlarged to three decks.
Apr. 16, 1929: The Yankees become the first team to make numbers a permanent part of the uniform (numbers would become standard for all teams by 1932).
Sept. 25, 1929: Manager Miller Huggins, who guided the Yankees to their first six A.L. pennants and three World Championships, dies of blood poisoning.