context: In 1282 Sicily fell to Aragonia, whose king in 1442 also seized the Kingdom of Naples. Between 1504 and 1713 Sicily belonged to the Spanish Empire. Sicily fell to the Saviors in 1713 and was re-annexed to Naples in 1720. In 1815 Sicily and Naples were renamed the Kingdom of Both Sicily, which the Kingdom of Sardinia annexed in 1861 to form a united Italy. During World War II, German-Italian troops had a base on the island during African operations. The Allies landed in Sicily in 1943.
question: When was Sicily annexed to Italy?
answers.text: 1861