A series of Carolingian documents from around the time of Charlemagne (surveys of the great estates called polyptychs) reveal a new three-field rotation system emerging at that time. Even before then, and even in the drier regions, ...
A series of Carolingian documents from around the time of Charlemagne (surveys of the great estates called polyptychs) reveal a new three-field rotation system emerging at that time. Even before then, and even in the drier regions, ...
A series of Carolingian documents from around the time of Charlemagne (surveys of the great estates called polyptychs) reveal a new three-field rotation system emerging at that time. Even before then, and even in the drier regions, ...