What Was Sir Isaac Newton's Second Career?

Sir Isaac Newton's second career was Warden of the Royal Mint. Most famous for his scientific theories such as the laws of motion, Newton took the office of warden in 1696. Prior to this position, in 1670, Newton was elected as Lucasian professor of mathematics at the University of Cambridge in England. The position required Newton to lecture at least once a week during school sessions on various mathematical subjects.

More about Sir Isaac Newton:

• Principia is considered Newton's most notable work of his career. The book and its annotations contain Newton's laws of motion, law of universal gravitation, and classical mechanics.
• England had not yet adopted the Gregorian calendar during Newton's birth. England was using the Julian calendar and marked Newton's birthday as Christmas Day, 25 December 1642. After England adopted the Gregorian calendar in 1752, Newton's birthday became 4 January 1643.
• Newton is lesser known for his alchemy and occult research. Since modern science was still developing during Newton's lifetime, it was not uncommon for scientists to study alchemy.