Passage: The Aberdeen area has seen human settlement for at least 8,000 years. The city began as two separate burghs: Old Aberdeen at the mouth of the river Don; and New Aberdeen, a fishing and trading settlement, where the Denburn waterway entered the river Dee estuary. The earliest charter was granted by William the Lion in 1179 and confirmed the corporate rights granted by David I. In 1319, the Great Charter of Robert the Bruce transformed Aberdeen into a property-owning and financially independent community. Granted with it was the nearby Forest of Stocket, whose income formed the basis for the city's Common Good Fund which still benefits Aberdonians. During the Wars of Scottish Independence, Aberdeen was under English rule, so Robert the Bruce laid siege to Aberdeen Castle before destroying it in 1308, followed by the massacring of the English garrison. The city was burned by Edward III of England in 1336, but was rebuilt and extended. The city was strongly fortified to prevent attacks by neighbouring lords, but the gates were removed by 1770.

Question: What year was Aberdeen Castle destroyed?
1308