The story
Until the Middle Ages, Kerava was a wilderness, until two villages, Ylikerava ("Upper Kerava") and Alikerava ("Lower Kerava"), were created along the Kerava River (Keravanjoki). The first signs of established village settlement date back to the 1440s. Kerava was annexed to Tuusula when the Tuusula parish was founded in 1643. In 1862, the railway between Helsinki and Hämeenlinna was opened, which quickly brought industry to agricultural Kerava; the carpentry factory in Kerava was established in 1908, and the wood industry became an important factor in the development of the town. The coat of arms designed by Ahti Hammar features a woodworking joints made by a carpenter.
In 1924, Kerava was separated from Tuusula as its own township. At that time, it had a population of about 3,000. Originally, it also included part of the Korso area, and Korso railway station was also located in the township area. However, from 1954 onwards, the entire Korso was annexed to the then Helsinki Rural Municipality. During the peak periods of the late 1960s and 1970s, the population almost doubled due to immigration and good transport connections, and new suburbs were created in Kurkela, Kilta and Untola. Kerava was officially granted town rights in 1970.
From Wikipedia’s article on Kerava, shared under CC BY-SA 4.0.5