Upplands Väsby () is a locality and the seat of Upplands Väsby Municipality, Stockholm County, Sweden with 48,907 inhabitants in 2020. History The municipality has a long history with clear traces of settlements from the pre-Christian times in several places. The first traces of human culture have been found during excavations of Hammarby ridge, about 400 meters south of the current Glädjen junction, where the excavation of the burial ground Ekebo found a bronze axe from around 600 to 700 BC. Upplands Väsby has a low topography and the people lived by fishing, seal and waterfowl hunting. Several finds of foreign coins testify to the extensive trade with foreign countries. They include Arabic coins found at Great Wäsby castle grounds. At Runsa and Skavsta's prehistoric fortifications, known as hill forts. Traces of aboriginal burial grounds are found in many places in the form of mounds, stone circles, standing stones, or minor bumps. The graves are sometimes the shape of a ship, as at Runsa, one of Sweden's most famous stone circles. It is 56 meters from the bow and stern and was made in 400-500 AD. Other cemeteries in the form of large burial mounds exist near Löwenströmska Hospital and Runby, called Zamores Hill after the timpanist Antonin Zamore, a North African who came to Sweden in the late 1700s and who lived on the Runby Lower farm, now called the homestead. The largest cemetery is the Great Wäsby Castle ättebacke with around 200 burial mounds. In the early 1900s, Upplands Väsby was a small station community. The railway between Stockholm and Uppsala, built 1863–1866; the station house in Väsby was completed in 1865. Around the station, a society grew. Anton Tamm had bought up all the land that the present society is built on. In 1903 Tamm, at the time was CEO of Optimus, established the first major industry, Väsby Werkstäder. The company manufactured brass and copper, including Optimus products. Väsby Werkstäder was bought in 1917 by Finspongs Metallverk AB. Over the years, the company changed its name many times, but was popularly always called Messingen. They were later Swedish Metal Works and Granges-Weda and offered die casting and plastic manufacturing. Upplands Väsby today The municipality now has the character of a modern suburban town, situated between Stockholm and Uppsala. The distance to the city centre of Stockholm is twenty-five kilometers and to the centre of Uppsala forty-five km.