Complex sentence: Fram Strait is named after the Norwegian ship "Fram" used by Fridtjof Nansen, which drifted across the Arctic for two years before exiting the Arctic at Fram Strait in 1896.
Split into simpler sentences: Fram Strait is named after the Norwegian ship "Fram". In an expedition led by Fridtjof Nansen, the Fram drifted across the Arctic for two years before exiting the Arctic through what is now known as Fram Strait in 1896.