Borovsk (Боровск in Russian) is a town in the Kaluga Oblast in Russia. It is located on the Protva River , 80 km southwest of Moscow. Population: 12,000 (1969).
Borovsk is known to have existed since the 13th century. The town belonged to the Ryazan princes and became a part of the Muscovy in the 14th century. In 1444, Borovsky Pafnutiev Monastery was founded near Borovsk. An archpriest Avvakum Petrovich and boyarynya Feodosiya Morozova were incarcerated in this monastery in the second half of the 17th century. In 1880-1891, Konstantin Tsiolkovsky lived and worked as a teacher in Borovsk (his apartment is now a museum).
