Which river crosses the ancient French city of Amiens?

The main stem of the River Somme passes through Amiens, known in ancient times as Samara. It presumably means 'the summery river', that is to say the 'quiet river', stemming from an adjective *sam-aro- ('summery'). The city of Amiens was also known as Samarobriva (Gaulish: 'bridge on the Samara').

Amiens is a city and commune in northern France, 120 km (75 mi) north of Paris and 100 km (62 mi) south-west of Lille. It is the prefecture of the Somme department in Hauts-de-France. The city has a population of 136,105 according to the 2006 census.

Amiens was part of Francia (Kingdom of the Franks) starting from the 5th century. The Normans sacked the city in 859 and again in 882. In 1113, the city was recognized by King Louis VI of France, and in 1185 it was linked to the Crown of France.

The town was fought over during both World Wars, suffering significant damage, and was repeatedly occupied by both sides. The 1918 Battle of Amiens was the opening phase of the Hundred Days Offensive which directly led to the Armistice with Germany. The Royal Air Force heavily bombed the town during the Second World War. In the aftermath, the city was rebuilt according to Pierre Dufau's plans.

Both an industrial hub and services center, Amiens enjoys a large pool of workers with a labor pool of over 350,000 inhabitants and numerous professional training courses.