KNOW OUR NATION ( its purely about INDIA )

THE VALUE OF 'PI' WAS FIRST CALCULATED BY BOUDHANYA AND HE EXPLAINED THE CONCEPT OF WHAT IS KNOWN AS THE PYTHAGOREAN THEOREM.
HE DISCOVERED THIS IN 6TH CENTURY LONG BEFORE THE EUROPEAN MATHEMATICIANS.THIS WAS VALIDATED BY BRITISH SCHOLARS IN 1999.

ALGEBRA, TRIGNOMETRY AND CALCULUS CAME FROM INDIA. QUADRATIC EQUATIONS WERE PROPOUNDED BY SRIDHARACHARYA IN11TH CENTURY.

THE LARGEST NUMBERS THE GREEKS AND THE ROMANS USED WERE 106 WHEREAS HINDUS USED NUMBERS AS BIG AS 10^53 WITH SPECIFIC NAMES AS EARLY AS 5000 BC DURING THE VEDIC PERIOD. 
EVEN TODAY, THE LARGEST USED NUMBER IS TERA 10^12.