In the spring of 1964, Mercury and his family fled from Zanzibar to escape the violence of the revolution against the Sultan of Zanzibar and his mainly Arab government, in which thousands of ethnic Arabs and Indians were killed. They moved to 19 Hamilton Close, Feltham, Middlesex, England. The Bulsaras briefly relocated to 122 Hamilton Road, before settling into a small house at 22 Gladstone Avenue in late October. After first studying art at Isleworth Polytechnic in West London, Mercury studied graphic art and design at Ealing Art College, graduating with a diploma in 1969. He later used these skills to design heraldic arms for his band Queen.