Lars Tammelin

Lars Tammelin, also known as Laurentius Gabrielis Tammelinus, was a Finnish mathematician and prelate who was Bishop of Turku from 1728 to 1733, born in Turku in the Swedish Empire on 2 May 1669 and dying on 2 July 1733. The son of Gabriel Larsson Tammelinus and Anna Eriksdotter Pihl, he began his studies in Turku and enrolled at the academy there in 1683. In 1698 he became professor of mathematics at the Royal Academy of Turku, and the next year made a study trip through Denmark, Germany and the Netherlands, enrolling at Leiden University on 27 November 1698, where he studied under the Cartesian mathematician and astronomer Burchard de Volder. He returned to Finland in the autumn term of 1699, was ordained priest in 1706, became vicar of Västerfärnebo in 1717 and was appointed Bishop of Turku in 1728. He published the first Finnish calendars between 1705 and 1727.