User talk:Christopher22360

June 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Science and inventions of Leonardo da Vinci. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Bill Cherowitzo (talk) 20:27, 17 June 2019 (UTC)