Across
1
Sudden overthrow of a government
5
Medieval land-for-service system
7
Ancient Egyptian ruler
8
Deadly epidemic disease
9
Government by the people
10
Fortified medieval residence
11
Exchange of goods between peoples
Down
2
Period of one hundred years
3
Union formed for mutual benefit
4
Legislative body in ancient Rome
6
Belonging to a very old period
12
Long and distinct period of history