 Henrik Viktor Engvist (1912-1987), the son of a merchant from Jakobstad, was responsible for the birth of the Mäntysalo area.Engvist and his family moved from Helsinki to the northern part of Klaukkala, known as the then small village, and in 1960 purchased the Karppo estate, where they built a modest, 18-square-meter log cabin.In order to secure his livelihood, Engvist came up with the idea of sketching out other potentials for residents in the area.