Epirus ( which means "continent" in Greek) was an ancient territory in the northern Greece . Olympias (Alexander's mother) and Pyrrhus was from there .
After the 1204 A.D. , and the "dirty" 4th Crusade ,the Kingdom of Epirus was one of the "Greek states" created after the division of the Byzantine Empire ...
After the indpedence of Greece (1830) the areas still under foreign control were many ( Thessaly,Ionian Islands,Crete,Macedonia,Thrace,Smyrni,Most of the Aegean islands,Dodecanese,Cyprus and Epirus). So one of the greek goals was to recapture Epirus .
This objective was half-achieved with the Balkan Wars . Unfortunately , the Great Powers created the Albanian state (1913) and they gave it Northern Epirus .