What new knowledge enabled Arab and Indian sailors to develop the Indian Ocean trade, which some historians consider a maritime Silk Road?

Answers:

• new navigational techniques

• learn the pattern of the monsoon winds

Explanation:

• Arab and Indian seafarers developed new navigational techniques and sailing technologies.

• Arab and Indian sailors learned the pattern of the monsoon winds, thereby enabling them to make long voyages across the Indian Ocean.

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answer; 55-85;