Calcium oxide15 is known as lime1116 and is one of the top 10 chemicals1217 produced annually by thermal decomposition of limestone. The thermal decomposition of calcium carbonate to lime18 is one of the oldest chemical reactions known. For several thousand years, lime has been used in mortar (a paste of lime, sand and water) to cement stones to one another in buildings, walls and roads. The setting of mortar involves several chemical reactions.
1 Congregation Shearith Israel, 1654, Upper West Side, Manhattan, is the oldest congregation in New York and the United States. 2  Temple Society of Concord, 1839, Syracuse, New York.  Angel Orensanz Center, 1849, Lower East Side, Manhattan, is the oldest synagogue building still standing in New York State.
More information can be found in the book A Brief History of Lititz Pennsylvania by Mary Augusta Huevener, published in 1947. During a part of the American Revolution, the Brethren's House, built in 1759, was used as a hospital. A number of soldiers died and were buried here. Lititz is also home to Linden Hall School, the oldest all-girls boarding school in the United States. Located adjacent to the Moravian Church on 47 acres (19 ha) of land, Linden Hall School was founded by the Moravians in 1746, a decade before the borough was incorporated.