By Emily Burack, Research Intern Seventy years ago, on July 22, 1946, the bombing of the King David Hotel occurred in Mandatory Palestine. The Irgun Zvai Leumi (Irgun), a group that played a key role in the Jewish underground, orchestrated the attack in response to a day known as “Black Sabbath,” June 29, 1946, when British officials arrested nearly 3,000 Zionist officials and raided…