When did Carl Friedrich Gauss live?
Carl Friedrich Gauss
Johann Carl Friedrich Gauss was born on 30 April 1777 in Brunswick (Braunschweig), in the Duchy of Brunswick-Wolfenbüttel (now part of Lower Saxony, Germany), to poor, working-class parents. His mother was illiterate and never recorded the date of his birth, remembering only that he had been born on a Wednesday, eight days before the Feast of the Ascension (which occurs 39 days after Easter). Gauss later solved this puzzle about his birthdate in the context of finding the date of Easter, deriving methods to compute the date in both past and future years. He was christened and confirmed in a church near the school he attended as a child.
Eduard Heine
In 1844 Heine went for a teaching position at the University of Bonn, passing his habilitation and starting as a privatdozent. He continued his research in mathematics in Bonn and, in 1848, was promoted to extraordinary professor. In 1850 he married Sophie Wolff, the daughter of a Berlin merchant; the couple had five children, four daughters and one son. In 1856 Heine moved as a full professor to the University of Halle, where he remained for the rest of his life. From 1864 to 1865, he served as a rector of the university. In 1875, the University of Göttingen offered Heine a mathematics chair but he decided to reject the offer and remain in Halle. In 1877, at the centenary of Gauss' birth, he was awarded the Gauss Medal for his research. Eduard Heine died on 21 October 1881 in Halle.