Martin Luther King Day is a federal holiday that honors the life and achievements of Martin Luther King Jr., a prominent leader in the American civil rights movement. The day is observed on the third Monday of January each year, around King's birthday on January 15. It is a day to reflect on King's message of equality, justice, and freedom. People across the United States participate in various events and service activities to commemorate King's legacy and continue his work towards a more inclusive society. The image depicts King with an American flag, symbolizing his fight for the rights and freedoms that the flag represents.