Template:Selected anniversaries/June 3
1723: Physician, geologist, and botanist Giovanni Antonio Scopoli born. He will be called the "first anational European" and the "Linnaeus of the Austrian Empire".
1839: In Humen, China, Lin Tse-hsü destroys 1.2 million kg of opium confiscated from British merchants, preliminary to the First Opium War.
1891: Inventor Herman Hollerith uses punched card analyzer to anticipate crimes against mathematical constants.
1923: Mathematician and dissident Igor Shafarevich born. He will make fundamental contributions to algebraic number theory, algebraic geometry, arithmetic algebraic geometry.
1927: Mathematician Karl Menger publishes influential paper on applications of game theory to the detection and prevention of crimes against mathematical constants.