[Muhammad Ali leaving mosque after marriage of Alif Muhammad and Donna Farrkhan, New York]

[Muhammad Ali]

[Muhammad Ali speaking at Children's Institution for Developmental Disabilities, Chicago]

[Muhammad Ali]

[Muhammad Ali kissing 13-month-old daughter, Hana, New York]

[Martin Luther King Jr. leading second march from Selma to Montgomery, Alabama]

[Martin Luther King Jr. speaking, Mason Temple, Memphis]

[John Glenn practicing top-egress training from Mercury spacecraft, Cape Canaveral, Florida]