Returning Rauraci build a fortified settlement, called oppidum (located in today's Basel Cathedral hill)
c. 44 BC – Augusta Raurica is founded by the Romans some 5 km from the site of the future city.
c. 15 BC – Successful colonization of the area supported by the Augustus's conquest of the central Alps
2nd C. AD
Augusta Raurica becomes a prosperous commercial trading centre and the capital of a local Roman province
Population reaches approximately twenty thousand people
250 AD – Powerful earthquake damages a large part of the city
ca.260 AD – Alemanni tribes and/or marauding Roman troops destroy Augusta Raurica
ca.300 AD, following the loss of the Limes Germanicus and the right bank of the Rhine River, the Roman army builds a castra (fort) named Castrum Rauracense near the old site of Augusta Raurica. It was intended to serve as the headquarters of the legio I Martia and to protect a ford over the Rhine.
4th century AD
The fort grows in importance because it commands a bridge that lies along the road from Gaul to the Danube River.
Emperors Constantius II and Julian assemble their armies at the Castrum Rauracense before marching to battle against the Alemanni.[1]
A church is built near Castrum Rauracense. The fort and neighboring church become the seat of a bishop, with the bishop first being mentioned in 346.[1]
374 AD – The town named Basilea or Basilia (from GreekBasileia, Βασιλεια "kingship") is documented[2][3]
ca.400 AD – Following the collapse of the Roman Empire, the Roman troops withdraw from Castrum Rauracense and Basilea, the Germanic Alemanni settled in
7th century AD – The bishop moves to Basel and the settlement at Castrum Rauracense declines in importance
Population: 212,857 in city; 234,945 in canton.[16]
The Israelitische Gemeinde Basel (or IGB) is the first Jewish community in Switzerland to be recognised under public law.[22]
1973 – Invicta International Airlines Flight 435 crashed south of nearby Hochwald while attempting to land at Basel-Mulhouse Airport. The accident became known in the British media as the Basle air crash and was the deadliest aviation disaster in Swiss history with the loss of 108 lives.[23]
^Wild, Matt, Dölf, Christophe Phillip (2005). Zeugnisse jüdischen Lebens aus den mittelalterlichen Städten Zürich und Basel», in: Kunst und Architektur in der Schweiz. Synagogen 56:2. pp. 14–20.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Haumann, Erlanger, Kury, Meyer, Wichers. Juden in Basel und Umgebung Zur Geschichte einer Minderheit. Darstellung und Quellen für den Gebrauch an Schulen. Schwabe Verlagsgruppe AG Schwabe Verlag.{{cite book}}: CS1 maint: multiple names: authors list (link)