Here is a little intro about them and their work to the world of science.All the scientists are before 14th century ..,When you the Europe was called a Dark continent ,Muslims Scientists Were ruling in all over the world!
I don't know what happened now But anyways Don't Forget the Past=)
Better be Proud!
Muhammad ibn Mūsā al-Khwārizmī
Consequently he is considered to be the father of algebra,[6] a title he shares with Diophantus. Latin translations of his Arithmetic, on the Indian numerals, introduced the decimal positional number system to the Western world in the 12th century.[5] He revised and updated Ptolemy's Geography as well as writing several works on astronomy and astrology.
His contributions not only made a great impact on mathematics, but on language as well. The word algebra is derived from al-jabr, one of the two operations used to solve quadratic equations, as described in his book.
For complete intro: http://en.wikipedia.org/wiki/Al-Khwarizmi
Avicenna
Avicenna was a Persian polymath and the foremost physician and Islamic philosopher of his time. He was also an astronomer, chemist, Hafiz, logician, mathematician, physicist, poet, psychologist, scientist, Sheikh, soldier, statesman and theologian.
His most famous works are The Book of Healing, a vast philosophical and scientific encyclopaedia, and The Canon of Medicine, which was a standard medical text at many Islamic and European universities up until the early 19th century .
Ibn Sīnā is regarded as a father of early modern medicine, and clinical pharmacology particularly for his introduction of systematic experimentation and quantification into the study of physiology,] his discovery of the contagious nature of infectious diseases, the introduction of quarantine to limit the spread of contagious diseases, the introduction of experimental medicine, evidence-based medicine, clinical trials, randomized controlled trials,