Why is banking important and how did it become an indirect development of the crusades?

Banking is crucial because it facilitates the management of money, credit, and investments, enabling economic growth and trade. The Crusades indirectly fostered the development of banking as European knights and nobles required financial support for their campaigns, leading to the establishment of systems for credit and loans. As trade routes expanded and commerce increased during and after the Crusades, banking evolved to meet the demands of merchants, leading to more sophisticated financial institutions. This transformation helped lay the groundwork for modern banking systems.