Fredrik Idestam's paper mill in Finland led to the formation of Nokia Corporation in 1865. Nokia became a major industrial force and later diversified into cable, rubber, and electronics. Nokia played a pioneering role in mobile communications through innovations like the Nordic Mobile Telephone network in 1981 and the first digital phone switch in 1982. By focusing on telecommunications and being a key developer of GSM technology, Nokia became the world's dominant mobile phone manufacturer throughout the 1990s and 2000s, introducing many mobile phones, features, and technologies that were industry firsts.