User talk:39.50.51.54

February 2019
Hello, I'm A Poor Historian. I noticed that you added or changed content in an article, Military conquests of Umar's era, 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. If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. ― A Poor Historian (talk) 15:35, 4 February 2019 (UTC)
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Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to Military conquests of Umar's era. Your edits appear to be vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. Serols (talk) 15:37, 4 February 2019 (UTC)