Other names Sheikh Abdullah Quilliam, Haroon Mustapha Leon 1 Date of birth Thursday, April 10, 1856 - 12:00 City of birth Liverpool Country of birth Britain Date of death Saturday, April 23, 1932 - 12:00 Location of death London Location Liverpool, Isle of Man, London. 2 About William Quilliam founded the Liverpool Mosque and Muslim Institute in 1891. He had converted to Islam in 1887. In 1894, the Ottoman Emperor declared Quilliam the Sheikh-ul-Islam of Britain. Organizations Liverpool Mosque and Muslim Institute The Shah Jahan Mosque, Woking 3 Secondary works Guilford, John, ‘Quilliam, William Henry (1856–1932)’, Oxford Dictionary of National Biography (Oxford University Press 2004) [http://www.oxforddnb.com/view/article/73031] Visram, Rozina, Asians in Britain: 400 Years of History (London: Pluto, 2002)