Complex sentence: The Vijayanagara empire was established in 1336 by Harihara I and his brother Bukka Raya I; it lasted until 1646; however, its power declined after a major military defeat in 1565 by the Deccan sultanates.
Split into simpler sentences: The Vijayanagara empire was established in 1336 by Harihara I and his brother Bukka Raya I; it lasted until 1646. However, its power declined after a major military defeat in 1565 by the Deccan sultanates.