4 Celestial Emblems

4 Celestial Emblems of Emperor
Tortoise (Black Warrior) = North, Winter, Black, Water
White Tiger (Kirin) = West, Fall, White,
Metal Red Bird (Phoenix) = South, Summer, Red,
Fire Dragon = East, Spring, Blue/Green, Wood A
lternative Names --zhuniao, the Crimson Bird, canglong, the Cerulean Dragon, xuanwu, the Dark Turtle, and baihu, the White Tiger http://www.fengshuigate.com/cosmology.html
4000 BCE - Astronomy used to orient houses at Banpo to the constellation Yingshi (part of Pegasus). 4000 BCE - Astronomical mosaics of the Dragon and Tiger flanked a male burial at Xishuipo, Puyang. 2300 BCE +/- 250 y - Yaodian (Book of Yao) records astronomical markers for calendrical purposes, using the leading-stars of the four mega-constellations. http://en.wikipedia.org/wiki/History_of_astronomy#Mesopotamia
zhuniao, canglong, xuanwu, baihu Crimson Bird, Cerulean Dragon, Dark Turtle, White Tiger