US
Adults
White
Americans
Black
Americans
0
10
20
30
40
50
60
70
80
90
100
The Civil Rights Movement
81
83
82
Civil War and Emancipation
79
81
72
The Underground Railroad
78
80
80
The Montgomery Bus Boycott
67
65
81
March on Washington (1963)
67
67
73
Jim Crow laws in the South
65
64
73
Atlantic Slave Trade
58
58
63
The origin of America's cotton industry
57
56
59
Brown v. Board of Education of Topeka
57
57
63
The Reconstruction
54
56
50
Great Migration
45
43
50
The Three-Fifths Compromise
44
44
45
Nat Turner's Revolt of 1831
38
33
57