Schoolchildren dress up in costumes to mark Jewish holiday of Purim Jewish people in Israel celebrate Purim Global Times Who's dressing up for Purim? Purim is a Jewish holiday that commemorates the miraculous survival of the Jewish people from almost certain destruction at the time of the Persian Empire. The Complete Guide to Israeli Clothing The Fashiongton Post Today the Jewish holiday Purim is being celebrated, a cheerful spring festivity. On this picture, taken in 1934, Anne (bottom right) and Margot (top right) are dressed up together with their friends.