WATCH: Martin Luther King Jr. Annual Commemorative Service

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The country is honoring the life and legacy of Dr. Martin Luther King Jr. on Monday.

The annual MLK Day Commemorative Service is currently taking place at Ebenezer Baptist Church.

Widely regarded as one of the greatest nonviolent leaders in history, King spearheaded the Civil Rights Movement from the mid-1950s until his assassination in 1968. It was during that time that he was the driving force behind landmark events like the Montgomery bus boycott and the March on Washington. 

During the March on Washington, King delivered his famous "I have a dream" speech to over 200,000 people at the National Mall. The historic movement inspired Congress to pass the landmark Civil Rights Act in 1964. The same year, King became the youngest person to win the Nobel Peace Prize at 35-years-old. 

App users: Watch annual commemorative service live

King is the only non-president to have a national holiday dedicated in his honor. 

Many people commemorate Dr. King's birthday by visiting Atlanta's National Historical Park, which reopened over the weekend after the Federal shutdown closed much of the park for weeks. Thanks to a grant from Delta, the park reopened on Saturday just in time for the MLK Day holiday. 

MORE: Dr. King National Park reopens in downtown Atlanta