Color Portrait of Rev. Dr. Martin Luther King Jr. published on the cover of Sepia magazine

A plaque on the Lucy mission featuring 20 messages from people on Earth, including John Lennon, Martin Luther King Jr., The Beatles, and more.

012617: Washington, D.C - U.S. Customs and Border Protection hosted the Martin Luther King Jr. program with multiple speakers featuring the theme "Remember, Celebrate, Act!". Seen here speaking about volunteer programs is Craig Kenner, Health and Fitness Specialist Benefits, Medical & Work life Division, Office of Human Resources Management.Photographer: Donna Burton

012617: Washington, D.C - U.S. Customs and Border Protection hosted the Martin Luther King Jr. program with multiple speakers featuring the theme "Remember, Celebrate, Act!". Seen here speaking is Anselm Beach, Diversity Director, Privacy and Diversity Office. Photographer: Donna Burton

U.S. Army Garrison Ansbach and 12th Combat Aviation Brigade celebrate 2020 Martin Luther King Jr. Day at Von Steuben Community Center at Bismarck Kaserne, Germany, Jan. 16, 2020. The members of New Hope Christian Center Choir rehearse before performance. (U.S. Army photo by Eugen Warkentin)

U.S. Army Garrison Ansbach and 12th Combat Aviation Brigade (12 CAB) celebrate 2020 Martin Luther King Jr. Day at Von Steuben Community Center at Bismarck Kaserne, Germany, Jan. 16, 2020. Sgt. Kenneth Turner holds the iconic “I have a dream” speech during the event. (U.S. Army photo by Eugen Warkentin)

12 Combat Aviation Brigade and U.S. Army Garrison Ansbach celebrate Martin Luther King Jr. Birthday at Von Steuben Community Center, Ansbach, Germany. Jan. 16, 2020. (U.S. Army photo by Eugen Warkentin)

170120-N-309-037 NAVAL SUPPORT ACTIVITY NAPLES, Italy, (Jan. 20, 2017) U.S. Naval Forces Europe-Africa Fleet Master Chief Raymond D. Kemp Sr. provides remarks during a Martin Luther King Jr. and Black History month celebration at Naval Support Activity Naples, Italy, Jan. 20, 2016. U.S. Naval Forces Europe-Africa, headquartered in Naples, Italy, oversees joint and naval operations, often in concert with allied, joint, and interagency partners, to enable enduring relationships, and increase vigilance and resilience in Europe and Africa. (U.S. Navy photo by Mass Communication Specialist 1st Class Ryan Riley/Released) Unit: Navy Media Content Services DVIDS Tags: NMCS; DVIDS Bulk Import

170120-N-309-028 NAVAL SUPPORT ACTIVITY NAPLES, Italy, (Jan. 20, 2017) U.S. Naval Forces Europe-Africa Fleet Master Chief Raymond D. Kemp Sr. provides remarks during a Martin Luther King Jr. and Black History month celebration at Naval Support Activity Naples, Italy, Jan. 20, 2016. U.S. Naval Forces Europe-Africa, headquartered in Naples, Italy, oversees joint and naval operations, often in concert with allied, joint, and interagency partners, to enable enduring relationships, and increase vigilance and resilience in Europe and Africa. (U.S. Navy photo by Mass Communication Specialist 1st Class Ryan Riley/Released) Unit: Navy Media Content Services DVIDS Tags: NMCS; DVIDS Bulk Import

U.S. Army Garrison Ansbach and 12th Combat Aviation Brigade (12 CAB) celebrate 2020 Martin Luther King Jr. Day at Von Steuben Community Center at Bismarck Kaserne, Germany, Jan. 16, 2020. The members of New Hope Christian Center Choir perform during the event. (U.S. Army photo by Eugen Warkentin)