Charles Rotmil knew he was being targeted for being Jewish. But he didn’t know why. “I couldn’t understand what was wrong with me, that I had to hide,” Rotmil, 89, of Portland said. “I was too young to know that.” Rotmil, who was made a refugee by Nazi persecution of Jews and survived the war by living with Christian families in Belgium, is one of Maine’s few remaining Holocaust survivors. For years he spoke in schools across the state about his experiences, hoping education could help prevent such an atrocity from happening again. “I don’t live in the past,” Rotmil...