Portal:History of science/Selected anniversaries/May 18
- 1675 - Death of Stanisław Lubieniecki, Polish astronomer (b. 1623)
- 1711 - Birth of Ruđer Josip Bošković, Serbian atomic theorist (d. 1787)
- 1850 - Birth of Oliver Heaviside, English physicist (d. 1925)
- 1872 - Birth of Bertrand Russell, English mathematician and philosopher (d. 1970)
- 1889 - Birth of Thomas Midgley Jr., American chemist and inventor (d. 1944)
- 1891 - Birth of Rudolf Carnap, German philosopher (d. 1970)
- 1901 - Birth of Vincent du Vigneaud, American chemist and Nobel Prize laureate (d. 1978)
- 1969 - Apollo 10 launches.
- 1974 - Under project Smiling Buddha, India successfully detonates its first nuclear weapon becoming the sixth nation to do so.