Old South Association is formed.

(Oct.) Originally The Twenty Women of Boston, and led by Mary Hemenway, its purpose is to save the Old South Meeting House from being sold and either demolished or reconstructed on top of a new office building proposed for the site. It is the first historic preservation organization in Boston, and the first to save a public building for its historic significance in the U.S.. Walter Muir Whitehill later calls its campaign, “The first instance in Boston where respect for the historical and architectural heritage of the city triumphed over considerations of profit, expediency, laziness and vulgar convenience.”