evidence for social evolution?

[Daniel]

Writing a research paper on most aspects of human evolution and i'm having a hard time finding proper evidence for social evolution, be it archaeological or not. Help me out please, urgent!

Thank you

[piercing radiance]

1: cave paintings
2: tapestries, art
3: communique, etched, marked or written
4: the development of markets
5: modern communication technology

the existence of these things tells us we as primates are social animals.