Nässjö was granted city rights in 1914. However, the town began to gain importance in 1864, when it was decided to run the southern main railway line from Malmö to Falköping through the town. Nässjö gradually developed into a rail hub. The town's first train station was the first public building designed by the Swedish architect Adolf W. Edelsvärd, who was also involved in the town planning and the development of the area around the station.
Source: Wikipedia