Meaning of time immemorial

time' immemo'rial

Pronunciation: [key]
  1. Also calledtime in the distant past beyond memory or record: Those carvings have been there from time immemorial.
  2. time beyond legal memory, fixed by statute in England as prior to the beginning of the reign of Richard I (1189).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.