Which people were so primitive that they didnt know how to write?

Primitive societies that lacked written language include early hunter-gatherer groups and some isolated tribal communities. These societies often relied on oral traditions to pass down knowledge, stories, and cultural practices. The absence of writing does not imply a lack of complexity; many of these groups had rich social structures and sophisticated methods of communication. Writing systems developed independently in different regions as societies became more complex and required record-keeping.