Portal:History of science/Selected anniversaries/March 28
- 1793 – Birth of Henry Schoolcraft, American geographer and geologist (d. 1864)
- 1794 – Death of Marquis de Condorcet, French mathematician and philosopher (b. 1743)
- 1802 – Heinrich Wilhelm Matthäus Olbers discovers 2 Pallas, the second asteroid known to man
- 1874 – Death of Peter Andreas Hansen, Danish astronomer (b. 1795)
- 1905 – Birth of Marlin Perkins, American naturalist and television host (d. 1986)
- 1914 – Birth of Kenneth Richard Norris, Australian entomologist (d. 2003
- 1928 – Birth of Alexander Grothendieck, German mathematician
- 1930 – Birth of Jerome Isaac Friedman, American physicist, Nobel laureate
- 1946 – Cold War: The United States State Department releases the Acheson–Lilienthal Report, outlining a plan for the international control of nuclear power
- 1946 – Birth of Wubbo Ockels, Dutch physicist and astronaut
- 1982 – Death of William Giauque, Canadian chemist, Nobel laureate (b. 1895)