2 results in English
Book of the Crosses
Libro De Las Cruzes (Book of the crosses) is one of the codices produced in the royal chamber of Alfonso X, King of Castile and Leon, also known as Alfonso el Sabio (Alfonso the Wise). This book is one of the very few publications in which Alfonso officially refers to himself as the king of Spain. The work shows the king’s interest in astrology. Alfonso’s extended royal stays in Toledo, and the fact that the codex was completed in 1259, also hint that the king could have been ...
Contributed by National Library of Spain
Book of the Alphonsine Tables
A reflection of the knowledge of astronomy of the time, these tables were produced in Spain between 1263 and 1272 under the direction of Isaac ben Sid and Judah ben Moses Cohen. The Ptolemaic belief that the planets orbited the Earth was then the predominant cosmological system, and the heliocentric model of the solar system formulated by Copernicus, who personally studied and copied the tables, was still two centuries away. Known as Alfonsine tables after King Alfonso X of Castile (reigned 1252–84), the tables are a compilation of data ...
Contributed by National Library of Spain