Complex sentence: The first known sighting of the island was in 1916, during the Canadian Arctic Expedition by Vilhjalmur Stefansson, and later named after Arthur Meighen, Canadian prime minister 1920-21 and 1926.
Split into simpler sentences: The first known sighting of the island was in 1916, during the Canadian Arctic Expedition by Vilhjalmur Stefansson. The island was later named after Arthur Meighen, Canadian prime minister 1920-21 and 1926.