Portal:History of science/Selected anniversaries/August 18

August 18:

• 1685 - Birth of Brook Taylor, English mathematician (d. 1731)

• 1868 - French astronomer Pierre Jules César Janssen discovers helium

• 1902 - Birth of Margaret Murie, American conservationist, naturalist, and author (d. 2003)

• 1955 - Birth of Taher ElGamal, Egyptian scientist

• 2001 - Death of David Peakall, British scientist (b. 1931)