It is said that the first admirals of the Ming Dynasty were Muslims. Is it possible?

This is true: by the 15th century, almost all sailors of the Indian Ocean – Arabs, Malays, Indonesians – had become Muslims and trusted only their co-religionists.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.