Template:Selected anniversaries/June 20: Difference between revisions
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||2011: Professor He Zehui dies ... nuclear physicist who worked to develop and exploit nuclear physics in Germany and China. Pic. | ||2011: Professor He Zehui dies ... nuclear physicist who worked to develop and exploit nuclear physics in Germany and China. Pic. | ||
File:Self portrait (20 June 2024) 20240620_202729.jpg|link=Self portrait (20 June 2024)|2024: '''[[Self portrait (20 June 2024)|Self portrait]]'''. | |||
</gallery> | </gallery> | ||
Latest revision as of 19:53, 20 June 2024
1840: Samuel Morse receives the patent for the telegraph.
1875: Inventor and engineer Wilhelm Bauer dies. He designed and built several hand-powered submarines.
1877: Alexander Graham Bell installs the world's first commercial telephone service in Hamilton, Ontario, Canada.
2024: Self portrait.