Growth The National Register of Historic Places has grown considerably from its beginnings as legislation in 1966. In 1986 citizens and groups nominated 3,623 separate properties, sites and districts for inclusion on the NRHP, a total of 75,000 separate properties. By 1998, including historic districts and individually listed buildings there were over 1, 000 ,000 buildings, sites and structures listed on the Register. Each year an additional 30,000 are added.Fisher, Charles E. "Promoting the Preservation of Historic Buildings: Historic Preservation Policy in the United States," (JSTOR), APT Bulletin, Vol. 29, No. 3/4, Thirtieth-Anniversary Issue. (1998), pp. 7-11. Retrieved March 21, 2007. In 2007 there were over 80 ,000 listings in the National Register of Historic Places. "About the National Register," National Register of Historic Places, National Park Service. Retrieved March 22, 2007.
Growth The National Register of Historic Places has grown considerably from its beginnings as legislation in 1966. In 1986 citizens and groups nominated 3,623 separate properties, sites and districts for inclusion on the NRHP, a total of 75,000 separate properties. By 1998, including historic districts and individually listed buildings there were over 1, 400 ,000 buildings, sites and structures listed on the Register. Each year an additional 30,000 are added.Fisher, Charles E. "Promoting the Preservation of Historic Buildings: Historic Preservation Policy in the United States," (JSTOR), APT Bulletin, Vol. 29, No. 3/4, Thirtieth-Anniversary Issue. (1998), pp. 7-11. Retrieved March 21, 2007. In 2021 there were over 95 ,000 listings in the National Register of Historic Places. 
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"About the National Register," National Register of Historic Places, National Park Service. Retrieved March 22, 2007.