User talk:Undertale5590

March 2019
Hello, I'm Wcherowi. I wanted to let you know that one or more of your recent contributions to Science and inventions of Leonardo da Vinci 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 Help Desk. Thanks. Bill Cherowitzo (talk) 18:56, 4 March 2019 (UTC)