 Complete the following phrase:  The crossing was named after the Mandelbaum House, a three-story building that stood at that location from 1927 to 1948. The house was built by a Jewish merchant named Simcha Mandelbaum, who had raised his ten children in the Old City but who needed a home with more space to accommodate his married children and guests. Rather than build in more populated areas like Jaffa Road or Rehavia, he chose to build on a lot at the end of Shmuel HaNavi Street, near the location of the Third Wall from the time of King Agrippas. Although Mandelbaum wanted to set an example for other Jews to build in the area and expand Jerusalems northern boundary, the Waqf owned large tracts in the area and forbade Arabs from selling any more land to Jews, so the house stood alone. During the uprisings of 1929 and 