sentence1: The section of the Lower Westerwald Railway between Staffel and Hadamar was opened on 1 January 1870 and the Upper Westerwald Railway was opened on 30 May 1884 .
sentence2: On January 1 , 1870 , the section of the Westerwald lower railway between Staffel and Hadamar was opened and the Westerwald - Oberbahn opened on 30 May 1884 .