who is the smartest man on earth
Isaac Newton was the smartest man on earth. Isaac Newton: 1643-1727 Isaac Newton's life can be divided into three periods: 1. His boyhood days, from 1643 up to his appointâ¦ment to a chair in 1669. 2. From 1669 to 1687 was the highly productive period in which he was Lucasian professor at Cambridge.