Ibn Sina (Avicenna) (Persian: 980 – June 1037 CE), commonly known in the West as Avicenna, was a polymath who is regarded as one of the most significant physicians, astronomers, philosophers, and writers of the Islamic Golden Age and the father of early modern medicine. Of the 450 works he is believed to have written, around 240 have survived, including 150 on philosophy and 40 on medicine. His most famous works are The Book of Healing, a philosophical and scientific encyclopedia, and The Canon of Medicine, a medical encyclopedia which became a standard medical text at many medieval universities and remained in use as late as 1650. Besides philosophy and medicine, Avicenna's corpus includes writings on astronomy, alchemy, geography and geology, psychology, Islamic theology, logic, mathematics, physics, and works of poetry.

Iranian Culture

Culture of Iran
Iranian people are acknowledged worldwide as hospitable and cultivated people. In general, Iranian cultural elements that are beyond the political borders of Iran can be briefly listed as follows:
1- Persian language and Persian dialects and accents
2- National holidays including Nowruz, Yalda night and solar calendar
3- Iranian philosophy
4- Religions and rituals of Zoroastrianism and Mehrism
5- Iranian art (Persian literature and poetry, Iranian architecture and Iranian food, etc.)
6- Local cultures of Iranian ethnic groups
7- Traditional Iranian music.
Iran has had huge impact on the cultures and people of the world, including countries as far away as Italy, Macedonia, Greece, Russia, Eastern Europe and Central Asia, the Arabian Peninsula, Southeast Asia, the Indian subcontinent and East Asia. In general, Iran's rich history has significantly influenced the world through its art, architecture, poetry, knowledge and technology, medicine, philosophy and engineering.
Iranian people's culture is extremely rich and diverse, and has long been influenced by several factors such as history, religions, language, art, literature and geography of this land. There are different ethnic groups and religions in Iranian society, each of which influencing the culture and national identity of the country to a certain extent. Iranian people are usually identified for being hospitable, kind and warm, and adherence to moral and social principles such as honesty, patience, tolerance and justice are among the significant characteristics of Iranian people's culture.
Also, values such as revering parents, respecting the elderly, and adhering to moral principles strengthen social relations in Iranian society. Iranian art and literature also constitute an important part of this country's culture, and poetry, classical and contemporary literature, music, painting and architecture are among the factors that influence Iran's cultural identity. National holidays and days are significant occasions marked in the Iranian calendar which include Nowruz (Iranian New Year) and Yalda Night, as well as national religious days such as Eid al-Adha (Eid-e Ghorban) and Eid al-Fitr (Eid-e Fetr).