On August 28, 1963, the Rev. Dr. Martin Luther King Jr. delivered his famous “I Have a Dream” speech to more than 250,000 supporters gathered on the National Mall. That day, Rabbi Joachim Prinz, a survivor of Nazi Germany, spoke just before Dr. King, and he reminded the audience that “the most urgent, the most disgraceful, the most shameful and the most tragic problem is silence.” [time-brightcove not-tgx=”true”] In the early 20th Century, despite their vastly different American experiences, Jewish and Black communities both faced identity-based violence, discrimination, ostracization and stereotypes.