Astronomy mathematics medicine and physics
This can be something as bizarre as an Alien from another Galaxy, or whether or not you should get paid. This question is very general and usually should be answered where the opposition or question is not in America or American, as that will ruin the unite everyone.
The main activity that helped Renaissance ideas spread to Northern Europe was the growth of the towns and social interactions between cultures. Another activity was printing and the use of the vernacular, which helped the Renaissance and also increased learning.
