6
warfare
× 4 |
0
jews
× 2 |
0
art
|
0
voting
|
6
nazi-germany
× 3 |
0
disabilities
× 2 |
0
hiroshima
|
0
confederacy
|
5
military
× 2 |
0
technology
× 2 |
0
development
|
0
money
|
5
weapons
× 2 |
0
soviet-union
× 2 |
0
medicine
|
0
time-keeping
|
3
war
× 3 |
0
diplomatic-history
× 2 |
0
literature
|
-1
world-war-two
× 3 |
2
slavery
× 5 |
0
weimar-republic
|
0
movies
|
-1
ancient-history
× 2 |
1
united-states
× 6 |
0
diplomacy
|
0
epidemics
|
-1
naval
|
1
economy
× 5 |
0
ancient-rome
|
0
17th-century
|
-1
cryptology
|
1
american-civil-war
× 3 |
0
catholic-church
|
0
nazism
|
-1
espionage
|
1
steppe-nomads
|
0
ancient-greece
|
0
japan
|
-1
secrecy
|
1
19th-century
|
0
sword
|
0
president
|
|
0
germany
× 3 |
0
spanish-flu
|
0
education
|