By the 1950s, scores of notable Manhattan buildings were lost to redevelopment around the city, and the mission of MAS broadened to include historical preservation. In 1956, the Society successfully lobbied for the passage of the Bard Law, which for the first time allowed cities to take aesthetics, history, and cultural associations into account for zoning laws. The law, named after longtime MAS board member and chief advocate, Albert S. Bard, provided a legal foundation for the New York City Landmarks Law, enacted in 1965.