I want to know the answer to the following question:
What field produces most of the finding about peasants from this era?
All the background I'm provided with is that "Unlike in the late Roman period, there was no sharp break between the legal status of the free peasant and the aristocrat, and it was possible for a free peasant's family to rise into the aristocracy over several generations through military service to a powerful lord.". Is that enough to answer the question?
Answer: no