Which invention from song china had the greatest influence on the spread of learning?

Song China had many great acievements and inventions that influenced the knowledge, but the one that helped to spread learning was the movable type printing, which was a great impact in China education. Together with the woodblock, it made possible the mass production of books (also the printing of documents). This caused an expansion in China education because children were encouraged to read and write.

answer: sorry but maybe take a pic of the map so nobody's confused

explanation:

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization