Traditional societies usually had restrictions to prevent self-support land from being alienated outside of the family or clan. By holding that the essence of private property is its ability to be sold or forfeited irreversibly, Roman law removed the archaic checks to foreclosure that prevented...

The papacy’s role as organizer of the Crusades empowered it to ask for—indeed, to demand—tithes from churches and royal tax assessments from realms ruled by the warlord dynasties it had installed and protected. England’s nobility and clergy pressed for parliamentary reform to block King John...

When interest-bearing commercial and agrarian debt came to be incorporated into civilization’s economic structure in the third millennium BC, it was accompanied by clean slates that liberated bondservants and restored to debtors the rights to the crops and land that creditors had taken. By the...