User talk:80.44.94.38

June 2020
Hello, I'm DVdm. I noticed that you added or changed content in an article, Determination of the day of the week, 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 the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Thank you. - DVdm (talk) 16:47, 14 June 2020 (UTC)