▁built ▁in ▁the ▁ 1 2 th ▁and ▁ 1 3 th ▁centuries . ▁Hal ber stadt ▁is ▁the ▁site ▁of ▁the ▁first ▁documented ▁large , ▁permanent ▁pipe ▁organ ▁installation ▁in ▁ 1 3 6 1 . ▁The ▁c athedral ▁is ▁notable ▁among ▁those ▁in ▁northern ▁European ▁towns ▁in ▁having ▁retained ▁its ▁medieval ▁tre as ury ▁in ▁virt ually ▁complete ▁condition . ▁Among ▁its ▁tre asures ▁are ▁the ▁oldest ▁surv iving ▁t apest ries ▁in ▁Europe , ▁d ating ▁from ▁the ▁ 1 2 th ▁century . ▁The ▁town ▁is ▁also ▁a ▁stop ▁on ▁the ▁scen ic ▁German ▁Tim ber - Frame ▁Road ▁ ▁The ▁town ▁can ▁be ▁reached ▁via ▁the ▁Bundes straße ▁ 6 n ▁( since ▁ 2 0 1 9 ▁called ▁Bundes aut ob ahn ▁ 3 6 ), ▁ 7 9 , ▁ 8 1 , ▁and ▁ 2 4 5 ▁federal ▁high ways . ▁Hal ber stadt ▁station ▁is ▁an ▁important ▁railway ▁hub ▁on ▁the ▁Mag de burg – Th ale ▁and ▁Halle – V ienen burg ▁lines , ▁mainly ▁served ▁by ▁Trans dev ▁Sachsen - An halt . ▁The ▁Hal ber stadt ▁tram way ▁network ▁currently ▁oper ates ▁two ▁lines . ▁ ▁Germania ▁Hal ber stadt ▁is ▁a ▁football ▁club ▁which ▁plays ▁in ▁Hal ber stadt . ▁ ▁History ▁ ▁In ▁ 8 1 4 ▁the ▁Carol ing ian ▁em peror ▁Louis ▁the ▁P ious ▁made ▁the ▁Christian ▁mission ▁in ▁the ▁German ▁stem ▁du chy ▁of ▁Sax ony ▁the ▁epis cop al ▁see ▁of ▁the ▁Dioc ese