Complex sentence: In 1778, Captain James Cook arrived at Waimea Bay, the first European known to have reached the Hawaiian islands, which he named after his patron the 6th Earl of Sandwich, George Montagu.
Split into simpler sentences: In 1778, Captain James Cook arrived at Waimea Bay, the first European known to have reached the Hawaiian islands. He named the archipelago after his patron the 6th Earl of Sandwich, George Montagu.