lost in the mists of time

lost in the mists 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 mists of time.
See also: lost, mist, of, time
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in periodicals archive ?
He was presented with a an engraved wine decanter by club chairman John Bell and in reply pointed out he only won one trophy at Newbiggin, but that was lost in the mists of time as, after the clubhouse burned down, the new trophy winners boards didn't go far enough back!
Golf
As time has gone on the original reason for the donation has been lost in the mists of time. According to licensing records of around the late 1940s, Mr Underhill, who was known as Frank, lived at 140 Outermarch Road, Radford, Coventry.
Amateur radio trophy; Letters
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