Great have been the liberties taken with Time, which, until recently, man considered invulnerable. Earliest metaphysical concepts held Time as an invariable quantity which Newton expressed as a flow from past to future. Smart, however, was Newton not to base any of his laws on this.
First to make any strong assault was Germany's Hermann Minkowski (1864-1909), who stated that Time is a dimension. Following him came Germany's Albert Einstein with his relativity laws. England's Arthur Stanley Eddington in The Nature of the Physical World told man that his reckoning of Time was misleading...