Alfonso X

Alfonso X from Spain and the Alfonsine Tables

Alfonso X from Spain and the Alfonsine Tables

On November 23, 1221, Spanish King and astronomer Alfonso X of Castile was born, who encouraged the preparation of revised planetary tables. These “Alfonsine Tables” a revision and improvement of the Ptolemaic tables, were the best available during the Middle Ages. Alfonso was born in Toledo, Spain. It is not much known about his early life. However, it is widely believed that he started his career as a soldier when he was…
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