Yeomen, peasants, and labour after the Black Death

What distinguished a yeoman from a peasant, and how did the Black Death change the peasant's position?

A yeoman had freer status, more resources, and a military association; after the Black Death, scarce labour let peasants move and demand wages or better terms.

The game question begins with the yeoman's higher tax contribution. In the simplified historical comparison, a yeoman is a freeman with more status, resources, and military training than a peasant. A peasant cultivates a small plot while owing work to a local lord. After the Black Death, labour scarcity makes it easier for surviving peasants to leave and demand payment elsewhere. Their ability to supply work gives them bargaining power that the old arrangement had restricted.