Complex sentence: From the 15th to the 19th centuries, Kalyvia was ruled by the Ottoman Turks and became liberated and a part of Greece after the Greek War of Independence in the 1820's.
Split into simpler sentences: From the 15th to the 19th centuries, Kalyvia was ruled by the Ottoman Turks. Kalyvia became liberated and a part of Greece after the Greek War of Independence in the 1820's.