Prior to World War I, traditional Jewish parents in Eastern Europe provided their daughters with, at the very most, a few years of formal religious education. If girls received any schooling beyond that, it would be at a secular institution; it was common, in fact, even for prominent Orthodox rabbis to send their daughters to secular schools. This all changed thanks to a Galician Jew named Sarah Schenirer, who founded a network of girls’ schools—known as Bais Yaakov—that grew rapidly in the 1920 and 30s; today, most ḥaredi girls attend Bais Yaakov institutions. Schenirer has since become a hero in ultra-Orthodox circles. But the popular version of her story muddles some key details.