User talk:50.83.214.254

May 2020
Please refrain from making unconstructive edits to Wikipedia, as you did at History of quantum mechanics. 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. - DVdm (talk) 18:23, 1 May 2020 (UTC)

Anonymous users from this IP address have been blocked from editing for a period of 31 hours to prevent further vandalism. If you think there are good reasons for being unblocked, please read the guide to appealing blocks, then add the following text below the block notice on your talk page:. Jauerbackdude?/dude. 18:35, 1 May 2020 (UTC)
 * If this is a shared IP address and you are an uninvolved editor with a registered account, you may continue to edit by logging in.