Liliana Segre waves at the end of a meeting with students in Milan, Italy, in 2018. For decades, Segre, 89, was reluctant to discuss her time in Auschwitz. But in the 1990s, she began speaking to schoolchildren throughout Italy about the Holocaust.

Liliana Segre waves at the end of a meeting with students in Milan, Italy, in 2018. For decades, Segre, 89, was reluctant to discuss her time in Auschwitz. But in the 1990s, she began speaking to schoolchildren throughout Italy about the Holocaust.