I want to know the answer to the following question:
When was the Nanjing Railway Station originally constructed?
All the background I'm provided with is that "Among all 17 railway stations in Nanjing, passenger rail service is mainly provided by Nanjing Railway Station and Nanjing South Railway Station, while other stations like Nanjing West Railway Station, Zhonghuamen Railway Station and Xianlin Railway Station serve minor roles.". Is that enough to answer the question?