> As usual with these kinds of books, there is no mention of the work done by Muslim astronomers hundreds of years before either Copernicus or Kepler. Same log

> As usual with these kinds of books, there is no mention of the work done by Muslim astronomers hundreds of years before either Copernicus or Kepler. Same logic applies for the Arabic/ Islamic Golden age astronomers who were dependent on previous Indian, Greek and other mathematicians to further translate/ popularize , improve upon and invent what was the state of the art in those times. Take a brief look at the wiki page for a continuity and cross-pollination of ideas across[1]. What matters is a conducive/ peaceful period where ideas flourish and new inventions are made. The historic progression of ideas is thus: (remember, there will be ideas cross-translated across individual years within this broad sub-periods, and isolated inventions which were independently/ semi-independently discovered). Babylonia (1800 BC) -> Egyptian (1800 BC) -> Greek (600 BC to 150 AD) -> Chinese (300 BC) -> Indian (200/500 BC to 1200/1400 AD) -> Islamic (1050 AD - 1400 AD) -> Medieval European (12th century) -> Renaissance (1400 AD) -> Modern Mathematics. Also, see [2] for Al-Khwarizmi's On the Calculation with Hindu Numerals (ca. 825), and Al-Kindi's four volume work On the Use of the Indian Numerals (ca. 830) > Unfortunately many Western historians casually ignore or at best minimize the impact the Islamic scientific movement had on many fields such as philosophy, mathematics, physics, chemistry, and astronomy. Instead they jump from the Greeks to the pre-Renaissance era. On the same token, one might be making the same mistake if the Indian influence of the Islamic golden age thought process is not acknowledged. By reason, the influence of Greeks on Indian thoughts and so on and so forth. Please take a look at [3] And lastly [4] [1] https://en.wikipedia.org/wiki/History_of_mathematics https://en.wikipedia.org/wiki/History_of_mathematics [2] https://en.wikipedia.org/wiki/History_of_the_Hindu%E2%80%93Arabic_numeral_system https://en.wikipedia.org/wiki/History_of_the_Hindu%E2%80%93A... [3] https://en.wikipedia.org/wiki/List_of_Indian_mathematicians#Ancient https://en.wikipedia.org/wiki/List_of_Indian_mathematicians#... [4] https://en.wikipedia.org/wiki/Standing_on_the_shoulders_of_giants https://en.wikipedia.org/wiki/Standing_on_the_shoulders_of_g...