History and legend both describe the first 400 years of Abbasid rule, roughly from 750 to 1150, as the Golden Age of Islam. Great military victories, booming international trade and agriculture leading to all round prosperity and luxurious living of the era gave rise to fables like Thousand and OneNights and prompted historian Khatib to claim that "Baghdad has become a city with no peer throughout the world". But the real distinction of the city which earned universal admiration was unrivalled intellectual activity in all fields: science, mathematics, technology, veterinary sciences, agronomy and literature including biography, history, and linguistics.