institutions and financial practices. Charging interest on loans and paying interest on deposits became more highly developed and competitive. The development of Roman banks was limited, however, by the Roman preference for cash transactions. During the reign of the Roman emperor Gallienus (260–268 CE), there was a temporary breakdown of the Roman banking system after the banks rejected the flakes of copper produced by his mints. With the ascent of Christianity, banking became subject to additional restrictions, as the charging of interest was seen as immoral. With the decrease in economic activity after the fall of Rome and Islamic invasions, banking likely temporarily ended in Europe and was not revived until Mediterranean trade commenced again in the 12th century. Religious restrictions on interest Most early religious systems in the ancient Near East, and the secular codes arising from them, did not forbid usury. These societies regarded inanimate matter as alive, like plants, animals and people, and capable of reproducing itself. Hence if you lent 'food money', or monetary tokens of any kind, it was legitimate to charge interest. Food money in the shape of olives, dates, seeds or animals was lent out as early as BCE, if not earlier. Among the Mesopotamians, Hittites, Phoenicians and Egyptians, interest was legal and often fixed by the state. Judaism The Torah and later sections of the Hebrew Bible criticize interest-taking, but interpretations of the Biblical prohibition vary. One common understanding is that Jews are forbidden to charge interest upon loans made to other Jews, but obliged to charge interest on transactions with non-Jews. However, the Hebrew Bible itself gives numerous examples where this provision was evaded. In general, it was seen as advantageous to avoid debt at all, to avoid being bound to someone else. Debt was to be avoided and not used to finance consumption, except when in need. However, laws against usury were among many the prophets condemned the people for breaking. The interpretation that interest could be charged to non-Israelites would be used in the 14th century for Jews living within Christian societies in Europe to justify lending money for profit. This conveniently side stepped the rules against usury in both Judaism and Christianity, as Christians were not involved in the lending but were still free to take the loans. Christianity Originally, the charging of interest, known as usury, was banned by Christian churches. This included charging a fee for