Politzer, in collaboration with his wife, created a study of the vulgarisms in the Merovingian documents in France and the Lombard documents in Italy. The results support what has been generally believed about the progress of Vulgar Latin in those areas.

Politzer, in collaboration with his wife, created a study of the vulgarisms in the Merovingian documents in France and the Lombard documents in Italy. The results support what has been generally believed about the progress of Vulgar Latin in those areas.