User talk:2601:543:4380:F600:BD19:C18E:4D91:D28

December 2020
Hello, I'm Materialscientist. I wanted to let you know that I reverted one of your recent contributions—specifically this edit to History of the Great Wall of China—because it 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. Materialscientist (talk) 18:28, 2 December 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

Notification: Blocked
 You have been blocked from editing for a period of 31 hours for Vandalism. Once the block has expired, you are welcome to make useful contributions. If you think there are good reasons why you should be unblocked, you may request an unblock by first reading the guide to appealing blocks, then adding  below. Materialscientist (talk) 18:28, 2 December 2020 (UTC)