phan ages ▁were ▁constructed ▁on ▁ 7 7 th ▁Street ▁near ▁ 3 rd ▁Avenue ▁and ▁another ▁in ▁Brook lyn ). ▁In ▁ 1 8 5 2 ▁the ▁" J ew s ' ▁Hospital " ▁( ren amed ▁in ▁ 1 8 7 1 ▁Mount ▁S ina i ▁Hospital ), ▁which ▁would ▁one ▁day ▁be ▁considered ▁one ▁of ▁the ▁best ▁in ▁the ▁country , ▁was ▁established . ▁ ▁Jewish ▁days ▁schools ▁began ▁to ▁appear ▁in ▁the ▁ 1 9 th ▁century ▁across ▁the ▁United ▁States , ▁the ▁first ▁being ▁the ▁Pol on ies ▁Tal m ud ▁Tor ah ▁in ▁ 1 8 2 1 . ▁▁ 1 8 8 1 – 1 9 4 5 ▁ ▁The ▁ 3 6 ▁years ▁beginning ▁in ▁ 1 8 8 1 ▁experienced ▁the ▁largest ▁wave ▁of ▁imm igration ▁to ▁the ▁United ▁States ▁ever . ▁Following ▁the ▁assass ination ▁of ▁Alexander ▁II ▁of ▁Russia , ▁for ▁which ▁many ▁bl amed ▁" the ▁Jews ," ▁there ▁was ▁a ▁vast ▁increase ▁in ▁anti - J ew ish ▁pog rom s ▁there ▁– ▁possibly ▁with ▁the ▁support ▁of ▁the ▁government ▁– ▁and ▁numerous ▁anti - J ew ish ▁laws ▁were ▁passed . ▁The ▁result ▁was ▁that ▁over ▁ 2 ▁million ▁Jews ▁imm igr ated ▁to ▁the ▁United ▁States , ▁more ▁than ▁a ▁million ▁of ▁them ▁to ▁New ▁York . ▁ ▁Eastern ▁Ash ken azi ▁Jews ▁and ▁their ▁culture ▁fl our ished ▁at ▁this ▁time . ▁There ▁was ▁infl ux ▁em igration ▁from ▁countries ▁such ▁as ▁Lith u ania , ▁Poland