Editing Boro Park (section)

== Chabad Community ==
Already during the time of the Rebbe Rashab, Chabad Chassidim who immigrated to the United States began settling in Boro Park, and by 1914, the Chabad synagogue 'Chevra Anshei Lubavitch Nusach Ha'Ari' was already operating.

In Nissan 1928, the Anash community in Boro Park chose Rabbi Eliyahu Yachil Simpson as their community rabbi.

Shortly after his election, he began working to establish a proper building for the Chabad synagogue in the neighborhood. In 1929, the construction of 'Congregation Ahavas Achim Tzemach Tzedek' was completed, a two-story building with its first floor dedicated to the synagogue and the second floor for Rabbi Simpson's family residence.

Shortly after construction was completed, the Rebbe Rayatz came to the United States during his first trip to America, and following Rabbi Simpson's suggestion, the new house served as the Rebbe's lodging place, who inaugurated its use.

Later, following a fire, the synagogue moved to 15th Avenue between 42nd and 43rd Streets, and after about two and a half years, it moved to 46th Street, the permanent location where the synagogue operates to this day.

In Kislev 1942, the first branch of Beis Rivkah in the United States was established in the synagogue, and later a branch of Chedrei Torah Temimah Lubavitch also operated there.

Among the synagogue's congregants were Rabbi Moshe Dober Rivkin, Rabbi Yitzchak Dober Ushpal, Rabbi Shmuel Zalmanov, and others.

During holiday processions, the synagogue was the center from which Chassidim would split up to various synagogues in the neighborhood, and where they would gather afterward, make Kiddush, and return together to 770.