What is the main difference between the Pirenne Thesis and the Castro Thesis? One focused primarily on the Vikings while the other focused on the Berbers. One was primarily focused on conversion and slavery while the other was focused on Charlemagne, One seemed based on dynamics of inevitable cultural conflict and the other on the possibility of sharing across cultural difference. One was about the origins of Islam and the other about its growth.

What is the main difference between the Pirenne Thesis and the Castro Thesis? One focused primarily on the Vikings while the other focused on the Berbers. One was primarily focused on conversion and slavery while the other was focused on Charlemagne, One seemed based on dynamics of inevitable cultural conflict and the other on the possibility of sharing across cultural difference. One was about the origins of Islam and the other about its growth.