User talk:Sydneyfactsfromaustralia

October 2021
Hello, I'm Materialscientist. I noticed that you made a change to an article, Sydney Opera House, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Materialscientist (talk) 17:37, 13 October 2021 (UTC)

Please refrain from making unconstructive edits to Wikipedia, as you did at Big Ben. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use your sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. —Laoris (talk) 17:42, 13 October 2021 (UTC)