The Golden Age of Islam spanned from the mid 8th to the mid 13th century A. D., although recent scholars have extended it into the 15th and 16th centuries. It encompasses the life of the prophet Mohammad and the beginnings of the Islamic religion. Islamic culture in Europe also influenced Western civilization. The Golden Age of Islamic Culture included many innovations in science, medicine, mathematics, astronomy, Hindu-Arabic numerals, and words. It was a time of inventions and exploration. The Golden Age ended with the siege of Baghdad in 1258 A.D. and with the rise of religious dogma, discussed here by Steven Weinberg and Neil deGrasse Tyson.