Martin Luther King
 
Screen 1 of 3
Martin Luther King
 
Jr.
was
 
a
social
activist
 
 
and
Baptist
minister
 
who
 
played
a key
role
 
 
in
 
the
American
civil
rights
 
movement
from
 
 
the
 
mid
1950s
until
 
his
assassination
 
in
1968.