Avicenna
Avicenna was born in Afshana, a village near Bukhara (in present-day Uzbekistan), the capital of the Samanids, a Persian dynasty in Central Asia and Greater Khorasan. His mother, named Sitāra, was from Bukhara; his father, Abdullāh, was a respected Ismaili scholar from Balkh, an important town of the Samanid Empire, in what is today Balkh Province, Afghanistan. His father worked in the government of Samanid in the village Kharmasain, a Sunni regional power. After five years, his younger brother, Mahmoud, was born. Avicenna first began to learn the Quran and literature in such a way that when he was ten years old he had essentially learned all of them.
Materia medica
The experimental scientific method was introduced into the field of materia medica in the thirteenth century by the Andalusian-Arab botanist Abu al-Abbas al-Nabati, the teacher of Ibn al-Baitar. Al-Nabati introduced empirical techniques in the testing, description and identification of numerous materia medica, and he separated unverified reports from those supported by actual tests and observations. This allowed the study of materia medica to evolve into the science of pharmacology. Avicenna (980–1037 AD) was a Persian philosopher, physician, and Islamic scholar. He wrote about 40 books on medicine. His two most famous books are "The Canon of Medicine" and "The Book of Healing", used in medieval universities as medical textbooks. He did much to popularize the connection between Greek and Arabic medicine, translating works by Hippocrates, Aristotle and Galen into Arabic. Avicenna stressed the importance of diet, exercise, and hygiene. He also was the first to describe parasitic infection, to use urine for diagnostic purposes and discouraged physicians from the practice of surgery because it was too base and manual.