 A significant aspect of the Muslim period in world history was the emergence of Islamic Sharia courts capable of imposing a common commercial and legal system that extended from Morocco in the West to Mongolia in the North East and Indonesia in the South East.While southern India was already in trade with Arabs/Muslims, northern India found new opportunities.As the Hindu and Buddhist kingdoms of Asia were subjugated by Islam, and as Islam spread through Africa – it became a highly centralising force that facilitated in the creation of a common legal system that allowed letters of credit issued in say Egypt or Tunisia to be honoured in India or Indonesia (The Sharia has laws on the transaction of business with both Muslims and non-Muslims).