User talk:74.95.81.78

May 2019
Hello, and welcome to Wikipedia. This is a message letting you know that one or more of your recent edits to History of optics has been undone by an automated computer program called ClueBot NG.

Thank you. ClueBot NG (talk) 12:46, 20 May 2019 (UTC)
 * ClueBot NG makes very few mistakes, but it does happen. If you believe the change you made was constructive, please read about it, [ report it here], remove this message from your talk page, and then make the edit again.
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 * The following is the log entry regarding this message: History of optics was changed by 74.95.81.78 (u) (t) ANN scored at 0.953505 on 2019-05-20T12:46:07+00:00