1463. Import of wheat under 6s. 8d. prohibited.

End of fifteenth century. Increase of enclosure.

1523. Fitzherbert's _Surveying and Husbandry_.

1540. General rise in prices and rents begins.

1549. Kett's rebellion. The last attempt of the English peasant to
obtain redress by force.

1586. Potatoes introduced.

1601. Poor Law Act of Elizabeth.

1645. Turnips and clover introduced as field crops.

1662. Statute of Parochial Settlement.

1664. Importation of cattle, sheep, and swine forbidden.

1688. Bounty of 5s. per quarter on export of wheat, and high duty on
import.

1733. Tull publishes his _Horse-hoeing Husbandry_.

1739. Great sheep-rot.

1750. Exports of corn reached their maximum.