Hannöversche Südbahn
The first railways were opened to Hildesheim and Brunswick in the 1840s. A direct connection across the former border between the Kingdom of Hanover and the Duchy of Brunswick was, however, not desired, at least in Hanover. East-west traffic ran through Lehrte and Kreiensen. Hildesheim was only connected via Lehrte in the north and with a branch line to Nordstemmen station on the Hanoverian Southern Railway.