The Sumerians are thought to have formed the first human civilization in world history. They lived in southern Mesopotamia, between the Tigris and Euphrates Rivers in the Middle East. Cradle of Civilization. Many historians think that cities and towns were first formed in Sumer around 5000 BC.
At noon, on March 21 and September 23rd are the vernal and autumnal equinoxes. The sun is directly overhead at the equator at these times. On June 22nd is the summer solstice, in the Northern Hemisphere. The sun is at the 23.5 degrees Northern latitude.
The Sun is directly overhead of the Tropic of Capricorn in the Southern Hemisphere during the December Solstice. The December Solstice occurs when the Sun reaches its most southerly declination of -23.4 degrees. In other words, when the North Pole is tilted furthest away from the Sun. 10 Facts on the December Solstice. Midnight Sun or Polar Night