date back

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date back

To have originated at an earlier time. This phrase is often followed by "to" and then the corresponding time frame or historical figure. I know she thinks that this vase is some great antique, but I doubt it dates back more than 30 years. This vase dates back to the Victorian period. This vase dates back to Queen Victoria.
See also: back, date
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

date back (to someone or some time)

to have origins that extend back to the time of someone or something. This part of the palace dates back to Catherine the Great. This is old! It really must date back.
See also: back, date
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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