User talk:120.21.229.27

December 2020
Hello, I'm Materialscientist. I noticed that you made a change to an article, Leon MacLaren, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Materialscientist (talk) 12:24, 28 December 2020 (UTC)
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Please do not add original research or novel syntheses of published material to articles as you apparently did to Leon MacLaren. Please cite a reliable source for all of your contributions. Thank you. Materialscientist (talk) 12:27, 28 December 2020 (UTC)

Please stop your disruptive editing. If you continue to add unsourced or poorly sourced content, as you did at Leon MacLaren, you may be blocked from editing.   Mosesheron (talk) 12:38, 28 December 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.