Regiomontanus builds a portable sundial for Pope …
Years: 1465 - 1465
Regiomontanus builds a portable sundial for Pope Paul II in 1465.
In Epytoma in almagesti Ptolemei, he critiques the translation of Almagest by George of Trebizond, pointing out inaccuracies.
Later Nicolaus Copernicus will refer to this book as an influence on his own work.
