context: Celtic peoples entered present-day Austria in the 400s BC. Their country was annexed to Rome as Noricum province in 9 BC. [1] Roman rule lasted in the 400s. After the Roman rule, Germanic and Slavic peoples migrated to the area. The area came under the control of the Franks. Christianity spread from the 600s onwards.
question: When was Austria Founded?
answers.text: 400s BC