A conceptual illustration of the Indian magnetic compass used by Hindu mariners in the 1-2nd centuries CE. The Indian compass was called the "matsyaya

A conceptual illustration of the Indian magnetic compass used by Hindu mariners in the 1-2nd centuries CE. The Indian compass was called the "matsyaya

A conceptual illustration of the Indian magnetic compass used by Hindu mariners in the 1-2nd centuries CE. The Indian compass was called the "matsyaya