What was Kristallnacht? What event triggered this show of Nazi aggression? Why did the Nazis target Jews?

Kristallnacht or the Night of Broken Glass, also called the November Pogrom, was a pogrom against Jews carried out by the Nazi Party's Sturmabteilung paramilitary forces along with civilians throughout Nazi Germany on 9–10 November 1938. The German authorities looked on without intervening. The pretext for the pogroms was the shooting in Paris on November 7 of the German diplomat Ernst vom Rath by a Polish-Jewish student, Herschel Grynszpan. News of Rath's death on November 9 reached Adolf Hitler in Munich, Germany, where he was celebrating the anniversary of the abortive 1923 Beer Hall Putsch.