The Indus Valley Civilization (c. 2600–1900 B.C.E.) was one of the earliest civilizations in South Asia and was established in present-day Pakistan and northwest India. It is sometimes referred to as the Harappa Civilization. Major urban areas of the Indus Valley include Mohenjo-Daro, Harappa, and Chanhu-Daro, which form a cohesive group due to their architectural similarities. Not much is known about Indus Valley culture or religion, but the discovery of art artifacts, including ancient seals, greatly interests art historians and other scholars who are eager to make cultural connections between the Indus Valley and contemporary art and culture in India and Southeast Asia.