Portal:History of science/Selected anniversaries/June 1
- 1633 - Birth of Geminiano Montanari, Italian astronomer (d. 1687)
- 1795 - Death of Pierre-Joseph Desault, French anatomist and surgeon (b. 1744)
- 1796 - Birth of Nicolas Léonard Sadi Carnot, French mathematician (d. 1832)
- 1833 - James Clark Ross discovers the position of the North Magnetic Pole on the Boothia Peninsula.
- 1846 - Urbain Le Verrier predicts the existence and location of Neptune from irregularities in the orbit of Uranus.
- 1899 - Birth of Edward Charles Titchmarsh, English mathematician (d. 1963)
- 1917 - Birth of William S. Knowles, American chemist and Nobel Prize laureate
- 1940 - Birth of Kip Thorne, American physicist
- 1941 - Death of Hans Berger, German neuroscientist (b. 1873)
- 1978 - The first international applications under the Patent Cooperation Treaty are filed.
- 1979 - Death of Werner Forssmann, German physician and Nobel Prize laureate (b. 1904)
- 1990 - U.S. President George H. W. Bush and Soviet Union leader Mikhail Gorbachev sign a treaty to end chemical weapon production and start destroying each of their nation's stockpiles.
- 2000 - The multilateral Patent Law Treaty (PLT) is signed.
- 2006 - The first Under Secretary for Science of the US, Raymond L. Orbach, is sworn in.