Jan. 7, 1999- Bill Clinton’s impeachment began in the Senate

Jan. 19, 1915- Neon signs were patented in the U.S. by George Claude from Paris, France

Jan. 19, 1981- The United States and Iran signed an agreement paving the way for the release of 52 Americans held hostage for more than 14 months

Jan. 20, 2009- First African American president Barack Obama was sworn in

Jan. 23, 1556- The deadliest earthquake on record killed 830,000 people in Shansi, China

Jan. 23,  1849- Elizabeth Blackwell becomes the first woman physician in the United States

Jan. 30, 1948- Gandhi was assassinated

Jan. 31, 1990- First McDonald’s opened in Russia

Jan. 31, 1865- 13th amendment was added to the Constitution abolishing slavery

Feb. 4, 1789- George Washington elected president

Feb. 4, 2004- Massachusetts Supreme Court declared that gays had the right to marry

Feb. 18, 1930- Ninth planet in the solar system discovered

Feb. 18, 1953- First 3D movie opened in New York

Feb. 23, 1896- Tootsie Roll was introduced

Feb. 28, 1958- The DNA strand was discovered