Question

Why did the Emperor Claudius require Jewish people to leave Rome in A.D. 49?

to promote the repopulation of Palestine
to ease overcrowding.to establish Roman colonies in recently conquered territory
to increase tax revenue for the empire
to prevent riots in the streets

Answer 1

To prevent riots in the streets.

Claudius' expulsion (around AD 49) is reported by Suetonius — he says Jews "constantly made disturbances at the instigation of Chrestus" — and is also implied in Acts 18:2 (Aquila and Priscilla had recently left Italy). The action was taken to stop public disorder.