Complex sentence: Isaac Todhunter (November 23,1820-March 1,1884), English mathematician, son of George Todhunter, a Nonconformist minister, was born at Rye.
Split into simpler sentences: Isaac Todhunter (November 23,1820-March 1,1884), was an English mathematician. The son of George Todhunter, a Nonconformist minister, he was born at Rye.