User talk:45.72.213.42

June 2020
Hello, I'm Chuka Chief. I wanted to let you know that one or more of your recent contributions to History of technology 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 Teahouse. Thanks. Chuka Chief (talk) 16:08, 4 June 2020 (UTC)
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