What job helped spread new ideas to other civilizations?

The role of traders significantly contributed to the spread of new ideas across civilizations. As they traveled along trade routes, such as the Silk Road, traders exchanged not only goods but also cultural practices, technologies, and philosophies. This facilitated the transfer of innovations like paper, gunpowder, and various religious beliefs, fostering cross-cultural interactions and the development of diverse societies. Their journeys helped create a network of knowledge that transcended geographic boundaries.