WASHINGTON—President Joe Biden signed a proclamation on Tuesday to establish a national monument in honor of Emmett Till, a 14-year-old African-American boy whose murder in 1955 marked a watershed moment in the civil rights movement.
“When I was preparing these remarks, quite frankly—and my colleagues will understand this—I found myself trying to temper my anger,” Mr. Biden said at the beginning of his remarks at a White House event.