▁elect r ified ▁( though ▁some ▁households ▁were ▁elect r ified ▁as ▁late ▁as ▁in ▁ 1 9 5 1 ). ▁World ▁War ▁II ▁brought ▁administrative ▁change , ▁as ▁Ł ód ź ▁and ▁the ▁surrounding ▁area ▁were ▁incorpor ated ▁in ▁the ▁Third ▁Reich ▁as ▁War th eland . ▁On ▁ 1 ▁January ▁ 1 9 4 0 ▁Ret kin ia ▁was ▁incorpor ated ▁into ▁the ▁city ▁of ▁Ł ód ź ▁by ▁the ▁German ▁administration ▁under ▁the ▁name ▁of ▁Erz hausen . ▁The ▁Polish ▁population ▁was ▁ev icted ▁from ▁their ▁land ▁in ▁ 1 9 4 2 - 1 9 4 3 , ▁and ▁the ▁total ▁number ▁of ▁w art ime ▁cas ual ties ▁among ▁the ▁residents ▁of ▁Ret kin ia ▁amount ed ▁to ▁ 1 4 4 . ▁The ▁decision ▁of ▁the ▁occup ant ▁regime ▁to ▁make ▁Ret kin ia ▁part ▁of ▁Ł ód ź ▁was ▁revers ed ▁after ▁the ▁end ▁of ▁World ▁War ▁II , ▁but ▁not ▁for ▁long , ▁and ▁in ▁ 1 9 4 6 ▁the ▁Polish ▁authorities ▁rein cor por ated ▁the ▁village ▁into ▁the ▁city . ▁▁ 1 9 4 6 – present ▁By ▁ 1 9 5 6 ▁Ret kin ia ▁had ▁a ▁population ▁of ▁more ▁than ▁ 5 5 0 0 , ▁retain ing ▁much ▁of ▁its ▁rural ▁character . ▁A ▁tram ▁link ▁to ▁the ▁city ▁centre ▁was ▁established ▁in ▁ 1 9 5 5 . ▁Tr am ▁no . ▁ 1 9 ▁had ▁its ▁termin us ▁by ▁the ▁fire ▁station ▁next ▁to ▁the ▁church .