Chaos, Greco-Roman, was a primordial deity; the amorphous male power who, with the female presence, Nyx, personifies the empty space that existed before the creation of the cosmos. Chaos produced two offspring, Erebos and Night. A.G.H.
Jordan, Michael, Encyclopedia of Gods, New York, Facts On File, Inc. 1993, p. 55
Grimal, Pierre, Larousse World Mythology, Secaucus, New Jersey, Chartwell Books, 1965, p. 102