▁of ▁guess work . ▁Another ▁theory ▁suggests ▁that ▁the ▁name ▁of ▁the ▁district ▁der ives ▁from ▁the ▁personal ▁name ▁Ret ko ▁( or ▁Ret ka ). ▁ ▁History ▁The ▁earliest ▁ar che ological ▁records ▁in ▁Ret kin ia ▁date ▁back ▁to ▁c . ▁ 8 0 0 - 2 5 0 ▁B . C . E ▁and ▁are ▁representative ▁of ▁L us at ian ▁culture . ▁A ▁major ▁discovery ▁in ▁Ret kin ia ▁was ▁the ▁exc av ation ▁of ▁a ▁rich ▁ske let al ▁grave ▁of ▁a ▁woman ▁from ▁the ▁ 3 rd ▁century ▁C . E . ▁in ▁ 1 9 3 5 . ▁▁ 1 3 9 8 – 1 9 1 0 ▁Before ▁being ▁incorpor ated ▁into ▁the ▁city ▁of ▁Ł ód ź ▁in ▁ 1 9 4 6 , ▁Ret kin ia ▁was ▁for ▁many ▁centuries ▁closely ▁associated ▁with ▁the ▁nearby ▁town ▁of ▁P ab ian ice ▁rather ▁than ▁the ▁fled g ling ▁town ▁of ▁Ł ód ź . ▁First ▁mentioned ▁in ▁an ▁ecc les iast ical ▁document ▁in ▁ 1 3 9 8 , ▁the ▁village ▁was ▁administr atively ▁part ▁of ▁the ▁Roman ▁Catholic ▁parish ▁of ▁St . ▁Matthew ▁in ▁P ab ian ice ▁from ▁the ▁late ▁Middle ▁A ges ▁until ▁ 1 9 1 0 , ▁and ▁together ▁with ▁P ab ian ice ▁it ▁belonged ▁to ▁the ▁C athedral ▁Chapter ▁of ▁Krak ów ▁until ▁the ▁Pr uss ian ▁invasion ▁of ▁ 1 7 9 3 . ▁After ▁negoti ations ▁between ▁the ▁Chapter ▁and ▁the ▁Pr uss ian