▁the ▁min ing ▁of ▁L ign ite ▁began . ▁As ▁a ▁result , ▁three ▁buildings ▁inside ▁the ▁village ▁had ▁to ▁be ▁demol ished . ▁After ▁the ▁German ▁reun ification , ▁B isch dorf ▁became ▁part ▁of ▁the ▁state ▁Brandenburg . ▁In ▁ 1 9 9 6 , ▁the ▁l ign ite ▁min ing ▁ended ▁and ▁the ▁former ▁quar ry ▁is ▁turned ▁into ▁a ▁lake . ▁ ▁On ▁ 1 ▁January ▁ 1 9 6 9 , ▁the ▁then ▁municipality ▁B isch dorf ▁an nex ed ▁the ▁municipality ▁Se ese ▁with ▁its ▁district ▁M l ode . ▁In ▁the ▁same ▁year , ▁Se ese ▁was ▁destroyed ▁in ▁favor ▁of ▁l ign ite ▁min ing . ▁On ▁ 1 ▁June ▁ 1 9 8 7 , ▁M l ode ▁reg ained ▁independence ▁as ▁a ▁municipality , ▁it ▁is ▁now ▁a ▁district ▁of ▁Cal au ▁( since ▁ 2 0 0 3 ). ▁On ▁ 1 ▁January ▁ 1 9 8 7 , ▁the ▁Gem ark ung ▁of ▁the ▁former ▁village ▁K ah ns dorf ▁became ▁part ▁of ▁B isch dorf . ▁B isch dorf ▁itself ▁was ▁an nex ed ▁by ▁Lü bben au ▁on ▁ 2 6 ▁October ▁ 2 0 0 3 . ▁ ▁Dem ograph ics ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Category : Local ities ▁in ▁O bers pre ew ald - L aus itz ▁Category : Local ities ▁in ▁Lower ▁L us atia ▁Category : Pro v ince ▁of ▁Brandenburg ▁Category : Be z irk ▁C ott bus <0x0A> </s> ▁"