How were ideas most likely spread in ancient history?

In ancient history, ideas were primarily spread through oral traditions, as stories and teachings were passed down verbally from generation to generation. Trade routes facilitated the exchange of cultural practices and beliefs, as merchants and travelers shared knowledge with the communities they encountered. Additionally, the advent of writing systems allowed for the recording and dissemination of ideas through texts, further amplifying their reach across regions. Social gatherings, religious ceremonies, and public events also played significant roles in sharing ideas among diverse populations.