twentieth-century [Adjective] + development [Noun]

Strength Strength Dispersion
A:
9
CHISQ:
29.9
AWT:
23,778,289
TTEST:
2.41
G2:
18.34
FAWT:
2.29
MI:
2.35
LOGLOG:
7.46
JD:
0.64
MI3:
8.69
DICE:
0.05
RANGE: