lost in the sands of time

lost in the sands of time

Lost or forgotten due to having occurred or existed so far in the past. For all that we've learned about these ancient structures, most of their purpose has been lost in the sands of time.
See also: lost, of, sand, time
References in periodicals archive ?
Which is why, when faced with quite a goodly amount of contemporary dancing--barefoot, toe-shoed, or hobnail-booted--I feel very much like that Legion officer, facing my readers, you honest, adventurous Legionnaires, and confessing to you: "Legion of the Lost, we're lost in the sands of time in the desert of the avant-garde.