edited by
Zacharias Topelius and published 1845-1852. Originally, Karkkila was a village in the municipality of Pyhäjärvi. In the 14th century, the Pyhäjärvi area belonged to the border area of the parishes of
Janakkala and
Lohja. In 1507, the Pyhäjärvi area became part of the
Vihti parish, which was separated from the Lohja parish. The place was originally known as
Pahajärvi ("bad lake"), but the name became established as
Pyhäjärvi ("holy lake") in the late 17th or 18th century. The borough area consisted mainly of the villages of Nyhkälä and Karkkila. The growth and industrialization of Karkkila has been affected by the now closed narrow-gauge
Hyvinkää–Karkkila railway. Later, the municipality of Pyhäjärvi was merged with the Karkkila borough in 1969. Officially, the Karkkila borough became a
town in 1977. ==Culture==