Empires
Penal colonies
Conquering powers
Conquering territories
Imperial expansion
5.0 - BT Foreign policy removed, Political science added; 6.0 - BT Political science removed BT Politics added; 6.2 - BT Politics removed, BT Social and political systems added; 6.4 – Removed BT Social and political systems. Added BT Political independence.
Imperialism
Colonies
Decolonisation
Free settlers
Invasion
Cultural imperialism
Intrusion (Invasion)
Occupation (Invasion)
Oligarchy