Complex sentence: Marcus Møller Thrane (14 October 1817--30 April 1890) was a Norwegian author, journalist, and the leader of the first Norwegian labour movement, later known as the Thrane movement (Norwegian: "Thranebevegelsen").
Split into simpler sentences: Marcus Møller Thrane (14 October 1817--30 April 1890) was a Norwegian author, journalist, and the leader of the first labour movement in Norway. It was later known as the Thrane movement ("Thranebevegelsen").