User talk:163.150.171.20

February 2017
Hello, I'm IronGargoyle. I wanted to let you know that I reverted one of your recent contributions —the one you made with this edit to History of water supply and sanitation— because it did not appear constructive. 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. Thanks. IronGargoyle (talk) 18:52, 10 February 2017 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.