20th-century [Adjective] + history [Noun]

Strength Strength Dispersion
A:
4
CHISQ:
105.47
AWT:
27,219,780
TTEST:
1.93
G2:
25.99
FAWT:
2
MI:
4.82
LOGLOG:
9.64
JD:
0.21
MI3:
8.82
DICE:
0.04
RANGE: