57
20th-century
× 6 |
9
ww2-pacific-theater
|
0
monarchy
|
0
africa
|
57
world-war-two
× 3 |
9
japan
|
0
republic-of-ireland
|
0
colonization
|
31
middle-ages
× 4 |
8
thailand
|
0
law
|
0
ireland
|
31
crusades
× 3 |
7
germany
|
0
political-history
|
0
war
|
27
14th-century
|
7
poland
|
0
royalty
|
0
age-of-discovery
|
27
crusaders
|
7
geography
|
0
naval
|
0
british-empire
|
27
templars
|
4
15th-century
× 2 |
0
united-nations
|
0
nobility
|
18
holy-roman-empire
× 2 |
4
language
|
0
russia
|
0
tradition
|
11
weapons
|
4
byzantine-empire
|
0
united-states
|
0
exploration
|
11
technology
|
0
19th-century
× 2 |
0
alaska
|
|
11
resource
|
0
united-kingdom
× 2 |
0
england
|
|
9
soviet-union
|
0
aircraft
|
0
civil-war
|
canadiancreed
