Main purpose of this lecture is to present on Ancient History of Astronomy. Astronomy is the oldest of the sciences. When Stoneage humans turned to an agrarian way of life and began to settle into communities. The Roots of Astronomy: Already in the stone and bronze ages, human cultures realized the cyclic nature of motions in the sky; Monuments dating back to ~ 3000 B.C. show alignments with astronomical significance; Those monuments were probably used as calendars or even to predict eclipses.