Prussian Eastern Railway
In the mid-19th century, the arrival of the Prussian Eastern Railway ("Preußische Ostbahn") contributed greatly to the development of Bromberg. The first stretch, from Schneidemühl (Piła) to Bromberg, was opened in July 1851. The city grew from 12,900 in 1852 to 57,700 in 1910 – of whom 84 percent were ethnic Germans and 16 percent ethnic Poles, all holding German citizenships.