▁World ▁News ▁Category : Sc ott ish ▁journal ists ▁Category : Al umn i ▁of ▁Card iff ▁University ▁Category : Pe ople ▁educated ▁at ▁Le ith ▁Academy <0x0A> </s> ▁Ir gen hausen ▁is ▁a ▁village ▁( A ussen w acht ) ▁of ▁the ▁municipality ▁of ▁Pf ä ff ikon ▁in ▁the ▁canton ▁of ▁Zur ich ▁in ▁Switzerland . ▁ ▁Geography ▁Ir gen hausen ▁is ▁located ▁in ▁the ▁district ▁of ▁Pf ä ff ikon ▁in ▁the ▁Zür cher ▁Ober land ▁on ▁the ▁eastern ▁shore ▁of ▁the ▁Pf ä ff iker see ▁( L ake ▁Pf ä ff ikon ). ▁ ▁Dem ograph ics ▁Ir gen hausen ▁belongs ▁polit ically ▁to ▁the ▁municipality ▁of ▁Pf ä ff ikon . ▁ ▁History ▁In ▁Roman ▁era , ▁along ▁Pf ä ff iker see ▁there ▁was ▁a ▁Roman ▁road ▁from ▁the ▁vic us ▁Cent um ▁Pr ata ▁( K em pr aten ) ▁on ▁Ober see – L ake ▁Zürich ▁via ▁V itud ur um ▁( O ber w inter thur ) ▁to ▁Tas get ium ▁( E sch enz ) ▁to ▁the ▁Rh ine . ▁To ▁secure ▁this ▁important ▁transport ▁route , ▁the ▁Ir gen hausen ▁Cas tr um ▁was ▁built . ▁The ▁native ▁name ▁of ▁the ▁fort ▁is ▁unknown , ▁thus ▁Ir gen hausen ▁was ▁mentioned ▁in ▁ 8 1 1 ▁AD ▁as ▁Cam put una ▁s ive ▁Ir in ches h usa . ▁Maybe ▁the ▁cas tr um ' s ▁name ▁was ▁Camb od un um , ▁the ▁name ▁of ▁the ▁neighbor ing ▁village ▁of