Alemanni Invade Gaul

Date: November 1, 365 • Location: Hoek van Holland, Netherlands

This milestone marked the outbreak and beginning of this historic period, which spanned 365–375.

Roman Emperor Valentinian I learns the Alemanni have crossed the Rhine and invaded Gaul.

Year 365 (CCCLXV) was a common year starting on Saturday of the Julian calendar. At the time, it was known in the West as the Year of the Consulship of Augustus and Valens. The denomination 365 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.