Rjukanbanen railway line is opened. The 16 km line, part of the 80 km Tinnosbanen, connects Mæl and Rjukan in Telemark. The line is operated by Norsk Hydro and its purpose is to transport fertilizer from the company's plant in Rjukan, which opened in 1911 to its shipping port at Skien. The line closed in 1991.
