India's diverse cultural legacies date back thousands of years. One of the world's first civilizations developed in the Indus Valley about 2500 B.C. India was later the birthplace of several religions, including Hinduism and Buddhism. From the A.D. 300's to about 500, Indian art, literature, and the sciences flourished during the golden age of the Gupta Dynasty. Muslim influence reached its peak under the Mogul (or Mughal) emperors in the 1600's. Western culture, which took hold in the 1800's during the British colonial period, is much in evidence today, particularly in the cities.