8 March 1618 March 7, 2014 Author: Staff Johannes Kepler finds the third law of planetary motion. Famous Words of Inspiration..."Our scientific power has outrun our spiritual power. We have guided missiles and misguided men." Martin Luther King Jr. — Click here for more from Martin Luther King Jr. Related posts: 8 March 1983 8 March 1978 23 March 1983 3 March 1913 Categories: History Tags: 1618, 8 March