▁community ▁to ▁demol ish ▁the ▁building , ▁as ▁the ▁attack ▁on ▁it ▁was ▁said ▁to ▁have ▁left ▁it ▁in ▁danger ▁of ▁col laps ing . ▁ ▁A ▁short ▁distance ▁from ▁the ▁syn agog ue , ▁Le h mann ▁also ▁had ▁a ▁house ▁built ▁for ▁students ▁of ▁J uda ism , ▁with ▁a ▁collection ▁of ▁the ological ▁writ ings . ▁This ▁building , ▁known ▁as ▁the ▁" K laus ", ▁was ▁where ▁many ▁important ▁students ▁of ▁the ▁Tal m ud ▁and ▁rabb is ▁were ▁taught . ▁ ▁The ▁" K laus " ▁gave ▁Hal ber stadt ▁the ▁reputation ▁of ▁being ▁an ▁important ▁centre ▁for ▁the ▁study ▁of ▁the ▁Tor ah . ▁Today ▁the ▁Mos es ▁M end els so hn ▁Academy ▁is ▁based ▁there ; ▁this ▁organ ises ▁exhib itions , ▁con gress es ▁and ▁present ations ▁and ▁provides ▁a ▁wide ▁range ▁of ▁information ▁about ▁the ▁Jewish ▁culture ▁and ▁way ▁of ▁life . ▁ ▁World ' s ▁slow est , ▁longest ▁concert ▁ ▁A ▁performance ▁of ▁John ▁C age ' s ▁organ ▁piece ▁As ▁S low ▁As ▁Possible ▁began ▁in ▁the ▁B urch ard ik irche ▁in ▁Hal ber stadt ▁in ▁September ▁ 2 0 0 1 ; ▁the ▁performance ▁is ▁scheduled ▁to ▁take ▁ 6 3 9 ▁years . ▁The ▁concert ▁began ▁on ▁ 5 ▁September ▁ 2 0 0 1 ▁with ▁a ▁rest ▁last ing ▁ 1 7 ▁months . ▁On ▁the ▁dates ▁of ▁the ▁sound ▁changes ▁the ▁church ▁is ▁usually ▁well ▁visited . ▁ ▁Notable ▁residents ▁ ▁Cas par ▁Ab el