While teaching about the Holocaust at the Brooklyn Amity High School this year, one of Mehnaz Afridi’s favorite stories to tell came from a country not usually associated with the Nazi genocide: Albania. While most countries either colluded with the Nazis or surrendered to their demands, she told her students, the Muslims of Albania fought to protect their Jewish neighbors and even provided refuge to Jews from other countries. The story may feel apt at a moment of rising antisemitism, but it was especially resonant for Afridi’s students — all but one of whom were Muslim. The yearlong class at...