history greatest empires before century defeated its caliphate umayyad 7th abbasids miles million square height spanned
history dynasty ming its greatest empires economic breakdown collapse 17th contributed disasters 1450 century early height natural before spanned miles
history its world empires british empire greatest height map war britain 1920 1920s imperialism 1922 countries 1900s land largest
empire persian its greatest first achaemenid extent great peak history alexander empires before million square map spanned countries height known
qing greatest dynasty china history map its chinese 1912 empires last many fell defeat uprisings rebellion foreign boxer powers point
empire empires greatest history peak its ethiopia persia conquest sasanian before iranian islam ancient caliphate islamic miles million square lesson
yuan dynasty china its khan kublai peak map empires rule ming first history mongol greatest did miles million square expansion
history its french empires empire greatest second ww2 colonial peak miles million square before rule first china
history empires greatest empire british india