The Congregational Memorial Hall in Farringdon Street, London was built to commemorate the 200th anniversary of Great Ejection of Black Bartholomew's Day, resulting from the 1662 Act of Uniformity which restored the Anglican church. The two thousand puritan ministers who refused to take the oath of conformity thereby established non-conformism. The architect of the hall was John Tarring. The hall was demolished in 1968 and Caroone House was built on the site — an office which was used by British Telecom for its international business and telephone tapping.