After the American Revolutionary War, both Maryland and Virginia donated land to form the new federal District of Columbia. Additional congregations which ultimately became parishes formed much nearer the Potomac River at this time, including Christ Church, Washington Parish (a/k/a Navy Yard; 1794) and St. John's Episcopal Church, Georgetown Parish (1796). After the destruction of the War of 1812, with the Burning of Washington in August 1814, St. John's Episcopal Church, Lafayette Square (1815) was built facing historic Lafayette Square across from the rebuilt "President's House", at 1600 Pennsylvania Avenue, N.W., (in the historic Lafayette Square Historic District) which later became known as the "Executive Mansion" and later the White House. St. John's has been long known as the "Church of the Presidents", visited frequently by neighboring chief executives and is the traditional site for an early morning prayer service and mass during inauguration days on March 4 and later January 20. Another historic episcopal church formed in the capital city, and which hosted nearby Maryland diocesan conventions, is the Church of the Epiphany (Washington, D.C.). Parishes formed during the 19th Century's "Oxford Movement" included St. Paul's Church on K Street, and St. James' Church on Capitol Hill. At least six historic African-American parishes formed in the capital city during the late 19th and early 20th Centuries.