User talk:90.221.131.181

May 2020
Hello, I'm Trains2050. I wanted to let you know that one or more of your recent contributions to Global Positioning System have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Teahouse. Thanks. Trains2050 (talk) 11:24, 29 May 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

June 2020
Please refrain from attempting to make unconstructive edits to Wikipedia. Your edits appear to constitute vandalism and have been [ disallowed by an edit filter.] If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. TheImaCow (talk) 13:36, 8 June 2020 (UTC)

Please stop your disruptive editing. If you continue to vandalize Wikipedia, as you did at Villein, you may be blocked from editing.   TheImaCow (talk) 13:36, 8 June 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

You may be blocked from editing without further warning the next time you vandalize Wikipedia, as you did with this edit to Global Positioning System. Materialscientist (talk) 10:24, 9 June 2020 (UTC)