All the Scientific Development in the West from 13th Century onwards owes its presence to the beautiful 10 digits 0,1,2,3,4,5,6,7,8,9 and the arithmetic operation rules on them, followed by a flood of discoveries in the fields of Trigonometry, Calculus, Algebra and various Theorems & Equations. But How did Europe come out of the dark ages suddenly and how so many mathematical discoveries suddenly erupted from 13th Century onwards is little explored and may be knowingly. The Roman Number Operations were so Tedious that what seems a simple multiplication today, can take days to be solved. Today we will understand the untold truth of this magnanimous contribution of Indian Maths in the field of Modern Number System and its operations to the West from Horses Mouth.
FIBONACCI, the Famous 13th Century Mathematician’s name, was ‘Leonardo Pisano’ . He is credited to Changing Roman Number System to Modern Number System in Europe and revolutionizing the World. But is it completely or partially true or not true at all. Let’s Start
Fibonacci in his Book ‘Liber Abaci’ Translated by L.E. Sigler writes in the PROLOGUE :
“In it I present a Full instructions on Numbers close to the ‘method of the Indians’ whose Outstanding Method I chose for the Science” Read this again and again, slowly, till you absorb it.
In the Preface Fibonacci Tells that he has travelled wide and studied various systems, but “He has found ‘Hindu Number System’ and its methods of calculation Superior to all Other calculations” . Now remember, a particular section of Academicians have continuously been telling you Arabic Numerals or Hindu-Arabic Number system instead of pure Hindu Number System
“My Father was a public official away from our homeland in the Bugia(Algeria) customshouse established for the Pisan (italian) merchants who frequently gathered there…. There from a marvelous instruction in the art of nin Indian Figures, the introduction and knowledge of the art please me so much above all else.
Fibonacci goes on to mention that he learnt (Indian figs. and arithmetic operations) from the Egyptians, Syrians, Greeks and those from Sicily and Provence. This clearly shows that these countries were already taking advantage of the Indian Number System for Trade and Commerce. But this no one tells. Fibonacci is clear that European methods are almost an Error Compared to (advanced) Indian Methods. Therefore he strictly embraced the Indian Method and was attentive to learning it.
Check the Map Below you can understand Fibonacci’s Bigha(Algeria) Location and the route to India via Arab leading to Knowledge transfer from cradle of civilization Bharatvarsha.
Fibonacci’s (Leonardo’s) intention was to introduce Hindu Number System and it’s operations to Italian people….. It was Leonardo’s Purpose to replace Roman Numerals not only among Scientists, but in commerce and among common people. This Knowledge spread from Mediterranean World to Germany
For next 3 centuries (13th to 16th Century) this book, Liber Abaci by Fibonacci (Leonardo Pisano) was was Taught in Europe which Later led to development of Science and Industrial revolution.
in the Starting Chapter 1 Itself, Fibonacci Refers The Nine Indian Figures are 9 8 7 6 5 4 3 2 1 and Zephir
It is clear that due to Left to Right sequence of numbers he learnt it from Arab traders but point to note that Everywhere he everywhere refers “Hindu Number System” Or “Indian Number System.”
While above pages are authentic English Translation of Liber Abaci by L.E. Sigler, Let’s see the Original Work showing 9 digits
Arabs are Far More Honest in admitting it. See what the Govt Website of Govt owned Saudi Aramco Says: Mislabeled for several Centuries in the West as Arabic Numerals, the decimal system was conceived in India and Transmitted to the middle east even before the rise of Islam.
What we famously call as Fibonacci Numbers are actually Hemachandra numbers. But the Great 11th Century Jain Scholar and PolyMath Hemachandra in Turn credits it to great Rishi Pingala. Such were the ancient sampradaya of Sanatan Dharma. No hatred, No Jealousy.
I am just leaving you here with a Chronology and of known major Mathematicians world over. Read slowly and carefully and you will be amazed to see the contribution of Indian Mathematicians that Changed the World.
The onus is on you, on all of us to spread the Truth
Ancients 
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