Arabic numerals
The first mentions of the numerals in the West are found in the "Codex Vigilanus" of 976.
List of Arabic star names
The astronomer Claudius Ptolemy in his "Almagest" (2nd century) tabulated the celestial position and brightness (visual magnitude) of 1,025 stars. Ptolemy's book was translated into Arabic in the 8th and 9th centuries and became famous in Europe as a 12th-century Latin translation. Many of the Arabic-language star descriptions in the "Almagest" came to be widely used as names for stars.