On this day in 1915, Yitzhak Zuckerman, who went by the name ‘Antek’ in the Warsaw Ghetto, was born in Warsaw, Poland. As an active member of Zionist youth movements, namely Hehalutz, Zuckerman was one of the first to interpret the deportations to the East as the beginning of the systematic annihilation of Jews.In March 1942, Zuckerman met with other leaders of youth movements and discussed the need for a defense organization. While many feared that resistance would only provoke the Nazis, on July 28, the Jewish Fighting Organization (ŻOB) was formed. This came shortly after the first deportation of Jews from the Warsaw Ghetto to Treblinka. As one of the three commanders, Zuckerman helped to also create the Jewish National Committee (ZKN).Zuckerman became one of the key points of contact with resistance movements on the Aryan side outside of the ghetto. As such, he was able to negotiate the black market purchases of pistols, grenades, and rifles. He was then able to smuggle these, along with messages, through the sewers into the Warsaw Ghetto. He was outside of the ghetto during the uprising and was not able to make it back in time. However, he was able to save around 75 fighters, within the ghetto’s walls, by escorting them through sewers and onto the underground of the Aryan side. At the end of the war, Zuckerman and his wife, Zivia Lubetkin, another leader in the Warsaw Ghetto, moved to British Mandatory Palestine, where they settled in 1947 and founded Kibbutz Lohamei Hagetaot.In 1961, Zuckerman and Lubetkin were prosecution witnesses in the trial of Adolf Eichmann. While recognized as a hero for his efforts during the War, his mental health suffered greatly. In 1981, Zuckerman suffered a heart attack and passed away at age 66.