Across
1
Ancient empire that conquered much of Europe
4
Male monarch ruler
5
Belonging to a very old period
7
Formal agreement between nations
9
Metal that replaced bronze in tools
10
Long and distinct period of history
13
Military blockade of a fortified place
Down
2
Armed conflict between nations
3
Person who buys and sells goods
6
Succession of rulers from same family
8
Period of one hundred years
11
Ancient Egyptian picture writing
12
Fortified medieval residence