Please do not add original research or novel syntheses of published material to articles. Please cite a reliable source for all of your contributions. Thank you. Materialscientist (talk) 12:16, 18 July 2017 (UTC)
Warning
edit Please do not add or change content, as you did at Septimius Severus, without citing a reliable source. Please review the guidelines at Wikipedia:Citing sources and take this opportunity to add references to the article. Thank you. --Kansas Bear (talk) 05:18, 23 February 2018 (UTC)
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