1. Lincoln's Birthday: February 12 is widely remembered as the birthday of the 16th President of the United States, Abraham Lincoln. Lincoln's birthday is observed as a holiday in some states, including Illinois, which is the state where Lincoln lived and worked before becoming President.

2. Frederick Douglass' Birthday: Another notable historical figure was also born on February 12, Frederick Douglass. Douglass was an American social reformer, abolitionist, orator, writer, and statesman. He was born into slavery but escaped and went on to become one of the most influential figures of his time.

3. The Washington Monument: The Washington Monument, which stands as a tribute to the first President of the United States, George Washington, was completed on February 12, 1885. The monument is located on the National Mall in Washington D.C. and is one of the most famous landmarks in the city.

4. Bill of Rights: On February 12, 1793, the state of Maryland ratified the Bill of Rights, which is the first ten amendments to the United States Constitution. The Bill of Rights guarantees essential rights and freedoms, including freedom of speech, religion, and the press.

5. Jackie Robinson: On February 12, 1946, Jackie Robinson, who would later become the first African American to play in Major League Baseball, signed a contract with the Montreal Royals, a minor league team. Robinson broke the color barrier in baseball when he joined the Brooklyn Dodgers in 1947, paving the way for future generations of African American athletes.