User talk:210.212.253.227

July 2014
Hello, I'm Vacation9. I wanted to let you know that I undid one of your recent contributions, such as the one you made with this edit to Numeral system, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Vacation 9  04:47, 3 July 2014 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself so you can avoid further irrelevant notices.

August 2017
Hello, I'm Denisarona. Your recent edit to the page Sputnik 1 appears to have added incorrect information, so I have removed it for now. If you believe the information was correct, please cite a reliable source or discuss your change on the article's talk page. If you would like to experiment, please use the sandbox. 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. Denisarona (talk) 06:42, 2 August 2017 (UTC)