with the purchase of around one-fourth of the territory of the neighboring community of Lauffohr. This was followed by the acquisition of a number of properties in 1827 from Umiken. Windisch sold the area around the train station in 1863 and transferred the land around the gas works in 1912. The village of Altenburg was incorporated into Brugg in 1901, and was followed in 1970 by the remainder of Lauffohr. On 1 January 2010 the municipality of Umiken and on 1 January 2020 the municipality of Schinznach Bad merged into Brugg. History Before the Municipality’s Establishment Archeological discoveries from the prehistoric era are scant. Two blades and fragments of a stone ax from the early Stone Age as well as a sickle from the Bronze Age are all that have been unearthed. In 58 BC, or shortly thereafter, the Helvetii, who had returned to the Swiss Plateau following the Battle of Bibracte, (re-)founded the settlement of Vindonissa on a hill between the Aare and Reuss on what is today territory of the neighboring community of Windisch. The Romans constructed a military post at Vindonissa around 15 BC, which they expanded into an encampment of a Roman Legion. At this time the first wooden bridge over the Aare was built as part of a Roman road across the Jura mountains to Augusta Raurica (known today as Augst). It was the only position along the Aare between Lake Thun and the Rhine at which the river could be crossed with a single log. Remains of around 350 Roman graves have since been discovered within Brugg, where two large Roman burial grounds were located, and archeologists estimate that a total of 7,000 graves exist. After the invasion of the Alemanni between 259 and 270 AD the Romans converted Vindonissa back into a camp of a Roman Legion, breaking with a 170-year "civilian phase." Around 370 AD the Romans established a fort as part of the Donau-Iller-Rhine-Limes-System in Altenburg. The Romans, though, ultimately withdrew between the years 401 and 406 AD. Settlement of the Alemanni in their stead has been traced to the 7th century. In the late 10th century a noble dynasty under Lanzelin, which was possibly related to the Alsatian Etichonids, settled in Altenburg. He expanded the established Roman fort into the Altenburg Castle and made it his seat. Around 1020 Lanzelin's son, Radbot, ordered the construction of the Habsburg Castle approximately