In June 17, 1864, Governor-General Mr. L. A. J. W. Baron Sloet van Beele broke ground for the first railway line in Java, which was then part of Netherlands East Indies. The line belonged to the Nederlandsch-Indische Spoorweg Maatschappij (Netherlands East Indies Railway Company), and the first line in operation was between Semarang and Tanggung, opened in August 10, 1867.