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This is an old revision of this page, as edited by Materialscientist (talk | contribs) at 07:53, 26 May 2023 (Message re. Liberalism (HG) (3.4.12)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

May 2023

Information icon Hello, I'm Apaugasma. I noticed that you added or changed content in an article, Islamic world contributions to Medieval Europe, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. ☿ Apaugasma (talk ) 21:37, 18 May 2023 (UTC)[reply]

Hello, I'm Materialscientist. I noticed that in this edit to Liberalism, you removed content without adequately explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an edit summary. If this was a mistake, don't worry, the removed content has been restored. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. Materialscientist (talk) 07:53, 26 May 2023 (UTC)[reply]


Your edits on Optics

Hi! It looks you you (probably accidentally) edited a very old version of the Optics article, which overwrote all later changes. This can happen if you're looking at an old version of the article, and then click "Edit". I've undone your edits, so there's nothing to worry about for you right now (no content on Wikipedia is ever permanently lost), but I just wanted to make sure you're aware in the future. You should have seen a warning saying "You are editing an old revision of this page", but I can understand if you didn't see that between some other banners and messages.

Anyway, welcome to Wikipedia! I'll leave a message below with a whole lot of useful links with more information, and if you've got any questions, feel free to ask me or visit the Teahouse. --rchard2scout (talk) 11:17, 22 May 2023 (UTC)[reply]

Welcome!

Hi Lijing1989! I noticed your contributions and wanted to welcome you to the Wikipedia community. I hope you like it here and decide to stay.

As you get started, you may find this short tutorial helpful:

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Alternatively, the contributing to Wikipedia page covers the same topics.

If you have any questions, we have a friendly space where experienced editors can help you here:

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Happy editing! --rchard2scout (talk) 11:18, 22 May 2023 (UTC)[reply]