Usury in the Latin West and riba in the Muslim world are similar but have their differences. Essentially, they’re both interest on debts. Medieval Christians in Europe used the term “usury” unsparingly for all cases of interest while medieval Muslims in the East had several forms of riba. Different Kinds
The Medieverse: Tim's Realistic "medieval" FANTASY Blog
Debunking medieval myths and misconceptions in fantasy to learn more about the real Middle Ages.