How many times has york castle been attacked?

What were the ghettos and what was their purpose? What impact did poison gas have during world war 1? Before the age of feudalism what was leader of japan called? What does Der Further mean? Did all stug IV have zimmerit coating in World War 2? Who built Valley Forge? What famous people come from the Ozarks? What was the goal of the allies incessant bombing of Germany? Who was the last living civil war soldier? Who fought in the battle of fort Sumter? As agriculture in the south and west became big business in the post civil war era? What were the causes of the united states civil war? What is the possessive noun for warren? What nations signed the SALT treaty? What was weakened by the outcome of the Vietnam war? What was the name of one of the islands that would be used as a staging area for the possible invasion of japan? What was the population of the UK in World War 2? How many years is a five score? Why did Washington want the us to remain neutral? What is shade 44 in military colors?