quality:correction, structural:reformatting
History

Social institutions similar to serfdom were known in ancient times. The status of the helots in the ancient Greek city-state of Sparta resembled that of the medieval serfs. By the 3rd century AD, the Roman Empire faced a labour shortage. Large Roman landowners increasingly relied on Roman freemen, acting as tenant farmers, instead of slaves to provide labour.

These tenant farmers, eventually known as coloni, saw their condition steadily erode. Because the tax system implemented by Diocletian assessed taxes based on both land and the inhabitants of that land, it became administratively inconvenient for peasants to leave the land where they were counted in the census.

Medieval serfdom really began with the breakup of the Carolingian Empire around the 10th century. During this period, powerful feudal lords encouraged the establishment of serfdom as a source of agricultural labour. Serfdom, indeed, was an institution that reflected a fairly common practice whereby great landlords were assured that others worked to feed them and were held down, legally and economically, while doing so.

This arrangement provided most of the agricultural labour throughout the Middle Ages. Slavery persisted right through the Middle Ages, but it was rare.

In the later Middle Ages serfdom began to disappear west of the Rhine even as it spread through eastern Europe. Serfdom reached Eastern Europe centuries later than Western Europe – it became dominant around the 15th century. In many of these countries serfdom was abolished during the Napoleonic invasions of the early 19th century, though in some it persisted until mid- or late- 19th century.