The young Nazi approached 13-year-old Szulem Czygielmamn as he walked on the sidewalk of Lubartowska Street in Lublin, Poland, and shoved him off the sidewalk. Szulem was lucky; Jews had died for less.

Aristides de Sousa Mendes was a Portuguese diplomat stationed in Bordeaux in the late 1930s who issued tens of thousands of visas to Jewish families, in direct violation of anti-Jewish laws instituted by Portugal’s fascist government at the time. For this act of resistance, Sousa Mendes faced trials and conviction, leaving him to live out the rest of his life in poverty and disgrace, and his 15 children scattered all over Europe and the U.S.

Maximilian Kolbe, born in Poland in 1894, was a Franciscan friar and Catholic priest. He spent most of his life studying theology and dedicating himself to the church, traveling across Europe and Asia during his lifetime.