Calchas, the soothsayer who accompanied Agamemnon to the siege of Troy; enjoined the sacrifice of Iphigenia to propitiate the gods, foretold the length or the war, and advised the construction of the wooden horses, a device by means of which Troy was surprised and taken.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Calave`ras * Calculus, Differential and Integral