The 1,300-foot evacuation zone in Boulogne-Billancourt was the former site of a Renault factory bombed by the Allies in 1942 or 1943, when it was producing motors for the German occupiers, Radio France Internationale reported.
The 1,100-pound unexploded device was discovered Jan. 27.
The local council gave the evacuated residents drinks and showings of a comedy film.
Interpol investigating stolen passports on missing flight
Susan Sarandon 'very excited' about daughter's pregnancy