Abdullah Quilliam
William Henry Quilliam (10 April 1856 – 23 April 1932), who changed his name to Abdullah Quilliam and later Henri Marcel Leon or Haroun Mustapha Leon, was a 19th-century British convert from Christianity to Islam, noted for founding England's first mosque and Islamic centre, and Britain's oldest Muslim organization, the Association of British Muslims. == Early life == William Henry Quilliam was born at 22 Eliot Street, Liverpool, on 10 April 1856, to a wealthy local family.