With the help of navigation, the ancient Arabs traded and spread Islam in the countries bordering the Indian Ocean. The book says that Islam is widely practiced in Southeast Asian countries.

The reason for this has to do with geography India is in our Asia, but it is geographically counted as Africa The Arabs' commercial trade was not only by sea, but also by land It is not because the Arabs didn't go there that they didn't believe in Islam Each country has its own rules of development Foreign cultures have a certain impact on the country's culture and economic system, but they are not the decisive role Like in our China, the Silk Road at that time, but nowadays most of us believe in Buddhism Australia and Indonesia are separated by the Great Plains. For example, in China, when we were on the Silk Road, but nowadays, most of us are Buddhists, and the fact that Australia and Indonesia are separated by the Pacific Ocean, largely determines the infrequency of communication between them, so that each country has its own unique characteristics, and I hope that you will make progress.