Portal:History of science/Selected anniversaries/July 7

July 7:

• 1746 - Birth of Giuseppe Piazzi, Italian astronomer (d. 1826)

• 1878 - Death of Yegor Ivanovich Zolotarev, Russian mathematician (b. 1847)

• 1906 - Birth of William Feller, Croatian mathematician (d. 1970)

• 1927 - Death of Gösta Mittag-Leffler, Swedish mathematician (b. 1846)

• 1959 - 14:28 UT Venus occults the star Regulus. This rare event was used to determine the diameter of Venus and the structure of the Venusian atmosphere