In 1860 Regensburg was connected to Passau, in 1873 a direct line to Nuremberg was opened and this was followed by a connection to Ingolstadt in 1874.
Regensburg was connected to Passau. This was in 1860. A direct line to Nuremberg was opened. This was in 1873. This was followed by a connection. This was to Ingolstadt in 1874.