9 4 0 . ▁ ▁Before ▁that , ▁it ▁is ▁unclear ▁what ▁parish ▁they ▁may ▁have ▁belonged ▁to . ▁ ▁The ▁Jewish ▁population ▁built ▁their ▁first ▁syn agog ue ▁in ▁ 1 7 5 0 ▁and ▁the ▁second ▁in ▁ 1 8 4 7 , ▁which ▁sh aped ▁much ▁of ▁the ▁modern ▁village . ▁ ▁While ▁the ▁Christian ▁residents ▁mainly ▁worked ▁in ▁agricult ure ▁( cro ps ▁and ▁increasing ly ▁in ▁the ▁ 1 9 th ▁Century , ▁liv est ock ▁far ming ), ▁the ▁Jews ▁( who ▁were ▁forb idden ▁land ▁or ▁cattle ) ▁worked ▁in ▁trade ▁or ▁ped d ling . ▁ ▁L eng n au ▁can ▁be ▁reached ▁through ▁a ▁bus ▁line ▁which ▁had ▁run ▁since ▁ 1 9 2 1 . ▁ ▁In ▁ 1 9 5 3 ▁it ▁was ▁connected ▁by ▁the ▁Sur bt al str asse ▁road ▁with ▁Baden . ▁ ▁In ▁ 1 9 6 8 , ▁an ▁industrial ▁zone ▁was ▁opened , ▁which ▁in ▁the ▁dec ades ▁that ▁followed ▁attract ed ▁about ▁ 8 0 ▁companies . ▁ ▁This ▁has ▁led ▁to ▁a ▁population ▁increase , ▁and ▁since ▁the ▁ 1 9 7 0 s ▁a ▁number ▁of ▁new ▁single - and ▁multi - family ▁neighborhood s ▁have ▁been ▁built . ▁ ▁Jewish ▁history ▁ ▁In ▁accord ance ▁with ▁the ▁resolution ▁of ▁the ▁Tags atz ung ▁in ▁ 1 6 7 8 , ▁Jews ▁were ▁allowed ▁to ▁sett le ▁in ▁the ▁communities ▁of ▁the ▁Sur b ▁valley . ▁ ▁After ▁ 1 7 7 6