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Facts About Ancient India
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The art of Navigation was born in the river Sindh 6000 years ago. The very word Navigation is derived from the Sanskrit word NAVGATIH. The word navy is also derived from Sanskrit 'Nou'.

Bhaskaracharya calculated the time taken by the earth to orbit the sun hundreds of years before the astronomer Smart. Time taken by earth to orbit the sun: (5th century) 365.258756484 days.

The value of "pi" was first calculated by Budhayana, and he explained the concept of what is known as the Pythagorean Theorem. He discovered this in the 6th century long before the European mathematicians.

Algebra, trigonometry and calculus came from India. Quadratic equations were propounded by Sridharacharya in the 11th century. The largest numbers the Greeks and the Romans used were 106 whereas Hindus used numbers as big as 10*53(10 to the power of 53) with specific names as early as 5000 BC during the Vedic period. Even today, the largest used number is Tera: 10*12(10 to the power of 12).

According to the Gemological Institute of America, up until 1896, India was the only source for diamonds to the world.

 
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