The Wannsee Conference, where the Nazis originated and planned the Final Solution, took place 70 years ago on Jan. 20.

With the passage of so much time, we must continue to work to ensure the nefarious plotting at that gathering—which ended in the murder of 6 million Jews—must never be forgotten.

The well-documented 1942 conference provides important evidence to repudiate today’s Holocaust deniers. The well-preserved documents from the conference are clear and undeniable blueprints for exterminating the Jews of Europe.

Israeli Prime Minister Benjamin Netanyahu, in a 2009 address at the United Nations, used copies of the minutes of the meetings to note that Iranian President Mahmoud Ahmadinejad’s Holocaust denying should not be tolerated, pointing to the uncontested evidence the Nazis themselves proudly left behind.

On Jan. 27, International Holocaust Remembrance Day, B’nai B’rith is hosting a program titled Zachor: Holocaust Memory Across Generations, An Inter-Generational Dialogue on the Shoah and its Legacy. Ambassador Busso von Alvensleben, consul general of Germany and Allan J. Jacobs, B’nai B’rith International president, will lead an informative discussion about the role of the children and grandchildren of survivors in teaching future generations about the Shoah.