Short answers, pulled from the story.
The army of Quintus Fabius Maximus crushed the Allobroges tribe at the Battle of the Isère River in August 121 BC. This military victory marked the beginning of Roman control over the territory that would become Valence.
Dauphin Louis, future Louis XI, founded the University of Valence on the 26th of July 1452. Louis XI confirmed the university's status via letters patent on the 12th of October 1461.
By 1931, 1,670 Armenians had settled in Valence after arriving from Bursa, Malatya, and Harput. An Armenian quarter developed between Boulevard Vauban, Rue Farnerie, Rue Madier-Montjau, and Boulevard d'Alsace during this period.
On the 15th of August 1944, bombs destroyed quarters and buildings including the hospital, killing 280 people. Four days later on the 19th of August 1944, a German train loaded with nitroglycerin exploded, causing 335 casualties among civilians, military, and resistance fighters.
The Hôtel de Ville was designated a monument historique by the French government in 2018. It currently serves as the seat of the municipal council led by mayor Nicolas Daragon since April 2014.