Original: Kristallnacht, also to referred to as the Night of Broken Glass, and also Reichskristallnacht, Pogromnacht, and Novemberpogrome, was a pogrom or series of attacks against Jews throughout Nazi Germany and parts of Austria on November 9 - 10, 1938.
Simplified: The Kristallnacht (also called Reichskristallnacht, Reichspogromnacht) was a two day pogrom that happened against Jews in Nazi Germany and parts of Austria. It was between November 9 and November 10, 1938.