Timeline of chemical element discoveries.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...h_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...very_graph.jpg
Previously:
https://www.homemadetools.net/forum/...250#post150146
https://www.homemadetools.net/forum/...288#post150284
https://www.homemadetools.net/forum/...240#post121457
https://www.homemadetools.net/forum/...277#post154148
https://www.homemadetools.net/forum/...170#post149750
