Agriculture was the primary economic activity in medieval feudal societies, as most people were involved in farming and producing food.

The manor was the basic unit of landownership in a feudal society, consisting of a lord's estate and the surrounding lands worked by serfs.

The king was at the top of the feudal hierarchy, followed by lords, knights, and serfs.

The primary obligation of a serf to their lord was to work the lord's land in exchange for protection and a place to live.

The primary role of a knight in a feudal society was to protect the lord and his lands from attack.

Feudal castles served multiple purposes, including providing housing for the lord and his family, storing food and supplies, and protecting the lord and his lands from attack.

Lords in a feudal society derived income from various sources, including taxes from the serfs, rents from tenants, and the sale of agricultural products.

Guilds in medieval towns served multiple functions, including regulating trade and commerce, providing social and economic support to their members, and protecting their interests in legal disputes.

The decline of feudalism in Europe was caused by a combination of factors, including the rise of trade and commerce, the growth of towns and cities, and the development of new military technologies.

Feudalism did not lead to the development of a strong central government, the rise of the middle class, or the establishment of a unified European culture.

The Black Death had a profound impact on European society, causing a decline in population, leading to an increase in wages for workers, and contributing to the decline of feudalism.

The Hundred Years' War was primarily caused by a dispute over the English throne between the English and French royal families.

The Hundred Years' War ended with France gaining control of most of England, except for Calais.

The Renaissance had a profound impact on European society, leading to a renewed interest in classical learning and culture, the development of new artistic and literary styles, and the rise of humanism.

The Protestant Reformation was caused by a combination of factors, including Martin Luther's disagreement with the Catholic Church over the sale of indulgences, the desire for religious reform, and the rise of nationalism.