Note 380 — Chapter I · (continued 2)

Regiomontanus,—as Johannes Müller, of Königsberg, in Franconia, was called, from his town,—published at Nuremberg his Ephemerides for the interval 1475-1506; and these were what Columbus probably used. Cf. Alex. Ziegler’s Regiomontanus, ein geistiger Vorläufer des Columbus, Dresden, 1874. Stadius, a professor of mathematics, published an almanac of this kind in 1545, and the English navigators used successive editions of this one.