There are many examples demonstrating that humanity has been interested in its surroundings since the beginning of recorded history. In fact, written on the walls of caves in Lascaux, France, are three dots indicating the brightest stars in the sky, which are estimated to have been drawn around 14000 B.C.E. Neolithic wall paintings found in Çatalhöyük, Turkey, show an early city plan from around 7500 B.C.E.