In 1653, the city of New Amsterdam was incorporated. It later was renamed New York City.
In 1848, the war between the United States and Mexico formally ended with the signing of the Treaty of Guadalupe Hidalgo. It provided for Mexico's cession to the U.S. of the territory that became the states of New Mexico, Arizona, California, Nevada, Utah and parts of Colorado and Wyoming in exchange for $15 million.
In 1876, the National Baseball League was formed, with teams in Boston; Chicago; Cincinnati; New York; Philadelphia; St. Louis; Louisville, Ky.; and Hartford, Conn.
In 1887, Groundhog Day was celebrated for the first time in Punxsutawney, Pa.
In 1933, two days after becoming chancellor of Germany, Adolf Hitler ordered dissolution of the German Parliament.
In 1990, South African President F.W. de Klerk announced he would free Nelson Mandela and lift a 30-year ban on the African National Congress. Mandela was released nine days later.
In 1993, more than 7,500 United Mine Workers miners went on strike against the Peabody Coal Co., the nation's largest coal producer.
Also in 1993, first lady Hillary Rodham Clinton banned smoking in the White House.
In 1998, U.S. President Bill Clinton submitted the first balanced federal budget in 29 years.
In 2002, a report requested by the board of directors of the Enron Corp. accused top executives of forcing the company into bankruptcy by, among other things, inflating profits by almost $1 billion.