**Begun as a cemetery in the 1660's, this site overlooking the Charles River was used by the British a century later as an emplacement for the cannon that fired on the Americans on Breed's Hill. Buried here are Cotton Mather and Edward Hartt, builder of the USS Constitution. Robert Newman, black educator Prince Hall, and blacks and mulattos who worked in the shipyards of the North End are also interred within these ancient grounds.