Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.
Linguistic history of India
The best-known inscriptions in Brāhmī are the rock-cut edicts of Ashoka, dating to the 3rd century BCE. These were long considered the earliest examples of Brāhmī writing, but recent archaeological evidence in Sri Lanka and Tamil Nadu suggest the dates for the earliest use of Brāhmī to be around the 6th century BCE, dated using radiocarbon and thermoluminescence dating methods.