Portal:History of science/Selected anniversaries/June 26
- 1694 - Birth of Georg Brandt, Swedish chemist and mineralogist (d. 1768)
- 1730 - Birth of Charles Messier, French astronomer (d. 1817)
- 1793 - Death of Gilbert White, English ornithologist (b. 1720)
- 1810 - Death of Joseph Michel Montgolfier, inventor of the hot air balloon (b. 1740)
- 1824 - Birth of Lord Kelvin, Irish physicist and engineer (d. 1907)
- 1883 - Death of Edward Sabine, Irish physicist, astronomer and explorer (b. 1788)
- 1904 - Birth of Frank Scott Hogg, Canadian astronomer (d. 1951)
- 1937 - Birth of Robert Coleman Richardson, American physicist and Nobel laureate
- 1938 - Birth of Gerald North, American climatologist
- 1943 - Death of Karl Landsteiner, Austrian biologist and Nobel laureate (b. 1868)
- 1948 - William Shockley filed the original patent for the grown junction transistor, the first bipolar junction transistor.