If you're talking about the holocaust, they hid in houses with secret rooms similar to where slaves hid and they fled the places of exile
OMMMMMMGGGG I LOVE 13 REASONS WHY I THINK TYLER KILLED ALEX BECAUSE HE HAD A SUITCASE FULL OF GUNS AND TOOK DOWN TYLER PICTURE NOW TYLER WANT TO KILL EVERYONE AT SCHOOL BECAUSE HE WAS BULLIED, THAT WHAT I THINK