▁which ▁had ▁originally ▁opened ▁on ▁ 1 ▁November ▁ 1 8 6 3 . ▁ ▁On ▁the ▁ 1 ▁July ▁ 1 8 7 4 , ▁the ▁B AE ▁completed ▁an ▁expansion ▁to ▁Mag de burg , ▁and ▁managed ▁the ▁ 5 - kil ometer - long ▁section ▁to ▁the ▁An halt - Pr uss ian ▁border . ▁ ▁On ▁the ▁ 1 5 ▁October ▁ 1 8 7 5 , ▁the ▁line ▁between ▁W itten berg ▁and ▁Fal ken berg ▁was ▁put ▁into ▁service , ▁which ▁completed ▁the ▁railway ▁network ▁of ▁the ▁Berlin - An halt ische ▁Eisen bahn - G es ellschaft . ▁ ▁The ▁B AE ▁did ▁expand ▁its ▁influence ▁again ▁when ▁it ▁acquired ▁the ▁management ▁rights ▁of ▁the ▁tracks ▁of ▁the ▁Ober laus itzer ▁Eisen bahn - G es ellschaft ▁on ▁the ▁ 1 ▁July ▁ 1 8 7 8 , ▁which ▁ran ▁from ▁Fal ken berg ▁via ▁El ster wer da – H oy ers wer da , ▁and ▁across ▁the ▁La us itzer ▁Ne i ße ▁river ▁to ▁K ohl furt . ▁ ▁This ▁line ▁had ▁been ▁opened ▁on ▁the ▁ 1 ▁June ▁ 1 8 7 4 ▁and ▁was ▁ 1 4 8 ▁kilom eters ▁in ▁length . ▁ ▁Service ▁opening ▁dates : ▁▁▁ ▁Berlin – W itten berg – K ö then ▁( 1 0 ▁September ▁ 1 8 4 1 ) ▁ ▁J ü ter b og – R iesa ▁( 1 ▁October ▁ 1 8 4 8 ) ▁ ▁B itter feld –