43
ancient-history
× 6 |
11
cultural-history
× 6 |
0
archaeology
× 2 |
0
north-america
|
40
british-empire
× 3 |
11
byzantine-empire
× 2 |
0
anthropology
× 2 |
0
food
|
40
india
× 2 |
11
surname
× 2 |
0
united-states
× 2 |
0
language
|
33
mesopotamia
× 2 |
10
roman-empire
|
0
technology
× 2 |
0
england
|
33
flood
× 2 |
10
roman-republic
|
0
agriculture
× 2 |
0
middle-ages
|
30
20th-century
× 3 |
10
ancient-rome
|
0
science
× 2 |
0
disease
|
27
economy
× 2 |
10
transportation
|
0
classical-antiquity
× 2 |
0
americas
|
27
united-kingdom
|
5
britain
|
0
collapse
|
0
law
|
18
time-keeping
× 2 |
5
celts
|
0
social-history
|
0
american-civil-war
|
18
calendar
|
5
sources
|
0
argentina
|
0
confederacy
|
17
bronze-age
|
3
world-war-two
|
0
trade
|
0
diplomacy
|
16
sumer
|
3
aircraft
|
0
colonization
|
0
government
|
13
democracy
|
0
political-history
× 3 |
0
1930s
|
0
great-depression
|