Want this question answered?
The Prime Meridian is the imaginary line defined as zero longitude. It joins the north and south poles and passes through England, Spain, France, Mali, Burkina Faso, Togo, Ghana, and Antarctica. On its way through England, it crosses a certain mark on the floor of a certain room at the Royal Observatory in Greenwich, outside London. The meridian of 180° longitude is exactly opposite the Prime Meridian and together, they form a complete circle. That meridian also joins the north and south pole, and passes through the Pacific Ocean for most of its length. The International Dateline roughly follows the meridian of 180° longitude, but departs from it with zigs and zags in several places, in order to avoid splitting any single state, country, or island group into two different calendar dates.
Ideally, the International Date Line should be the meridian of 180° longitude. Actually, it has been zigged and zagged to avoid cutting across any island or country, since to do so would put two different calendar dates in the same country simultaneously. If the IDL coincided with the 180° meridian, then together with the Prime Meridian, it would form a great circle on the earth, passing through the north and south poles as well as through Greenwich. As it is now, the Prime Meridian, the 180° meridian, and all other meridians of longitude are semi-circles, that begin and end at the poles.
maybe
I believe it dates back to when the North Star was used to find latitude by ancient sailors. Degrees latitude was found by the angle between the North Star and the horizon. Since the North Star sits on the horizon at the equator the angle is zero therefore latitude is zero degrees.
2000 BC through 1001 BC
The circle of illumination intersects the North Pole on the spring and autumnal equinoxes, March 20 or 21 and September 22 or 23, when the Earth's North and South Poles are not tilted toward or away from the sun, but are both at 90 degrees to the sun's rays. The sun is directly above the equator, and every location on Earth has 12 hours of daylight.
Illumination - 2011 was released on: USA: September 2011
Illumination - 2008 was released on: USA: 8 April 2008 (limited)
Illumination - 2012 was released on: USA: 20 March 2012 (internet)
Illumination - 2006 was released on: USA: 9 December 2006 (Santa Fe Film Festival)
Eric's Illumination - 2013 was released on: USA: 2 May 2013 (Pelican d'Or Short Film Festival)
Electric City - 2012 Illumination Night 1-20 was released on: USA: 19 July 2012
M-A-N-T-I-S- - 1994 Through the Dark Circle 1-12 was released on: USA: 18 November 1994
The Crow Stairway to Heaven - 1998 Through a Dark Circle 1-11 was released on: USA: 17 January 1999 Hungary: 22 August 2008
Armstrong Circle Theatre - 1950 Track of an Unknown The Story of North American Air Defense 12-4 was released on: USA: 22 November 1961
In the Circle - 2011 Out the Circle 1-3 was released on: USA: 25 December 2011
Circle - 2014 I was released on: USA: 2014 (limited)