Which of the following is not an improvement in agriculture in the early Middle Ages in Europe:
| three-field crop rotation | |
| heavy plow |
| use of bronze for tools | |
| new types of grains |
improvement in agriculture in the early Middle Ages in Europe:
Which of the following is not an improvement in agriculture in the early Middle Ages in Europe:
| three-field crop rotation | |
| heavy plow |
| use of bronze for tools | |
| new types of grains |