Martin Luther King Jr. Day is a federal holiday in the United States that honors the civil rights leader Martin Luther King Jr. The holiday was established to celebrate the achievements and contributions of Martin Luther King Jr. to the American civil rights movement.

Mrs. Rosa L. Parks Day is observed on different dates depending on the state. In some states like California and Missouri, it is observed on February 4, which is Parks’ birthday, while in others like Ohio and Alabama, it is celebrated on December 1, which is the anniversary of her arrest.

Lincoln's Birthday is an annual observance in the United States that honors the birth of Abraham Lincoln, the 16th President of the United States, who was born on February 12, 1809.

Washington's Birthday is a federal holiday officially designated to honor George Washington, the first President of the United States. It has become popularly known as Presidents' Day and is often used to celebrate the lives and achievements of all U.S. presidents.

Daisy Gatson Bates Day is a state holiday in Arkansas in honor of Daisy Gatson Bates, a civil rights activist and writer. Bates played a significant role in the African American civil rights movement, particularly during the integration of Central High School in Little Rock, Arkansas, in 1957.

Prince Jonah Kūhiō Kalanianaʻole Day is a state holiday in Hawaiʻi, honors Prince Jonah Kūhiō Kalanianaʻole, a prominent Hawaiian royal and statesman who played a key role in preserving Native Hawaiian culture and advocating for their rights during a pivotal time in Hawaiʻi's history.

Seward's Day commemorates a pivotal moment in American history when the United States acquired Alaska from Russia, shaping the nation's geopolitical and economic future. This state holiday, celebrated in Alaska, honors William H. Seward, the U.S. Secretary of State who negotiated the Alaska Purchase.

Cesar Chavez Day is a U.S. federal commemorative holiday celebrated annually on March 31. It honors the life and legacy of Cesar Chavez, a civil rights leader and labor activist who co-founded the United Farm Workers (UFW).

Truman Day is a state holiday observed in Missouri to honor Harry S. Truman, the 33rd President of the United States. Truman is celebrated for his leadership during a critical period in American and world history, particularly his decisions during and after World War II.

Jefferson Davis's Birthday is observed as a state holiday in some parts of the United States, particularly in the South. Jefferson Davis (1808–1889) was the President of the Confederate States of America during the American Civil War. The holiday commemorates his life and contributions to the Confederacy.