59
united-states
× 9 |
26
native-americans
× 4 |
19
mesopotamia
|
12
political-history
× 3 |
46
world-war-two
× 2 |
25
ancient-history
× 3 |
19
saudi-arabia
|
12
historiography
× 2 |
45
military
× 2 |
25
law
× 3 |
18
iraq
|
12
book
× 2 |
43
ww2-european-theater
|
25
citizenship
× 2 |
17
annexation
|
12
moscow
|
43
dday
|
23
europe
|
16
population
× 3 |
12
soviet-union
|
43
strategy
|
22
weapons
× 2 |
15
ancient-greece
× 2 |
12
cold-war
|
43
invasion
|
22
us-constitution
|
15
jesus
|
12
communism
|
41
battle
|
21
time-keeping
× 2 |
14
holocaust
|
11
transportation
× 3 |
31
middle-ages
× 4 |
20
roman-empire
× 2 |
14
jews
|
10
tudor-period
|
31
inventions
× 2 |
20
industry
|
14
nazi-germany
|
10
vietnam-war
|
29
war
× 3 |
20
business-history
|
13
titanic
× 2 |
10
slavery
|
29
american-civil-war
|
19
africa
|
13
technology
× 2 |
9
18th-century
× 4 |
27
agriculture
× 2 |
19
civilizations
|
12
19th-century
× 4 |
9
naval
× 3 |
Peter Diehr
