What makes Tumba differ from the other communities in northern Botkyrka is that it doesn’t stem from a big farm with roots way back in time. The people of prehistory preferred to live close to the shores. Tumba was an inland country. That’s why traces of man during prehistory are relatively rare. The big change took place during 1755 when the bank of Sweden bought a small farm and started a papermill. Around the papermill came a community that developed with its own school and houses for the workers to live in. The next big step was taken when the railroad came in 1860. Soon afterwards a society started to grow around the stationhouse. This society was more common with commerce, police, and a movie theatre than the papermill. A few houses from that period are still left. In 1894 ‘Separator’ (DeLaval) bought Hamra Gard and transformed it into a farm specialized in milkprocessing. It soon became a big industry. From the beginning these three parts worked separate but grew together. The communities of both the papermill and Hamra are well kept.