Across
1
Period of ten years
3
Government elected by the people
4
Large territory under one ruler
5
Formal agreement between nations
7
Advanced stage of human society
11
Belonging to a very old period
13
Person who travels to discover new lands
Down
2
Union formed for mutual benefit
3
Sudden overthrow of a government
6
Ancient Egyptian ruler
8
Relating to the Middle Ages
9
Military blockade of a fortified place
10
Military conflict or fight
12
Territory controlled by another country