Justinian's most important accomplishment was to order a review of the Roman law. This led to the publication of the Corpus Juris Civilis which was soon to be the most definitive codification of Roman Law.
The industrialization first occurred in Europe where European rulers fostered unusually close alliances with their merchant classes.
The renaissance period changed several positions.
Artists went up in status.
Writers went up in status.
Thinkers went up in status.
Doctors went up in status.
Craftsmen went up in status.
Traders went up in status. (Made much money. Check out several Italian families.)
The clergy went down in status. Particular not seen as all knowing.
Questioning the church and individuals motivates for their own personal gain. (Reformation)