4 ms·
It's because of the progress of agriculture in Europe at the end of the middle ages: https://en.wikipedia.org/wiki/Three-field_system https://en.wikipedia.org/
by vmorgulis 10y ago
It's because of the progress of agriculture in Europe at the end of the middle ages:
https://en.wikipedia.org/wiki/Three-field_system https://en.wikipedia.org/wiki/Three-field_system