Uncharted, Unexplored, and Unexplained: John Dalton

Born in obscurity to a Quaker family in England in 1766, John Dalton would eventually become of the most famous scientists of the 19th century. When he died in 1844, more than 40,000 people in his adopted city of Manchester, England, turned out to honor him. The master of his own school at the age of 12, he had a curiosity about the world around him for his entire life.