Multiple choice social studies evolution of humans and society - prehistoric period tribal societies from gathering food to growing food - the earliest people the earliest people _______ was a formative period and the foundation for the Sangam Age. Copper Age Bronze Age Stone Age Iron Age Reveal answer Fill a bubble to check yourself D Correct answer Explanation The Sangam era corresponds roughly to the late Iron Age-Early Historic period (c. 300 B.C. to A.D. 300), which represents a key stage in the development of South Indian material culture.