Complex sentence: Sir James Clark Ross (15 April 18003 April 1862) was a British naval officer and explorer remembered today for his exploration of the Arctic with his uncle Sir John Ross and Sir William Parry and, in particular, his own expedition to Antarctica.
Split into simpler sentences: Sir James Clark Ross (15 April 1800--3 April 1862), was a British naval officer and explorer. He explored the Arctic with his uncle Sir John Ross and Sir William Parry, and later led his own expedition to Antarctica.