Across
1
Advanced stage of human society
5
Formal agreement between nations
6
Period of one hundred years
7
Military blockade of a fortified place
8
Ancient Mesoamerican civilization
11
Succession of rulers from same family
12
Armed conflict between nations
Down
2
Relating to the Middle Ages
3
Deadly epidemic disease
4
Fortified medieval residence
9
Ancient Egyptian stone monument
10
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