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.
Sarangani
The earliest civilization in the province can be found in Maitum, Sarangani, where the Maitum Anthropomorphic Pottery or Maitum Jars were found. The jars have been dated to approximately 5 BC to 370 AD, one of the oldest in the entire Southeast Asian region and the Philippines. The discovery testified to the long history of cultural exchanges in Sarangani and its people.