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Al-Kashi
Ghiyāth al-Dīn Jamshīd Masʿūd al-Kāshī (or al-Kāshānī) ( ''Ghiyās-ud-dīn Jamshīd Kāshānī'') (c. 1380 Kashan, Iran – 22 June 1429 Samarkand, Transoxiana) was a Persian astronomer and mathematician during the reign of Tamerlane. Much of al-Kāshī's work was not brought to Europe and still, even the extant work, remains unpublished in any form. Biography Al-Kashi was born in 1380, in Kashan, in central Iran, to a Persian family. This region was controlled by Tamerlane, better known as Timur. The situation changed for the better when Timur died in 1405, and his son, Shah Rokh, ascended into power. Shah Rokh and his wife, Goharshad, a Turkish princess, were very interested in the sciences, and they encouraged their court to study the various fields in great depth. Consequently, the period of their power became one of many scholarly accomplishments. This was the perfect environment for al-Kashi to begin his career as one of the world's greatest mathematicians. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timurid Renaissance
The Timurid Renaissance was a historical period in Asian history, Asian and Islamic history spanning the late 14th, the 15th, and the early 16th centuries. Following the Islamic Golden Age, the Timurid Empire, based in Central Asia and ruled by the Timurid dynasty, witnessed the revival of Timurid art, arts and sciences. Its movement spread across the Muslim world. The French word ''renaissance'' means "rebirth", and defines a period as one of cultural revival. The use of the term for the description of this period has raised reservations among scholars, some of whom see it as a swan song of Timurid culture. The Timurid Renaissance was marked slightly earlier than the Renaissance movement in Europe. Some have described it as equal in glory to the Quattrocento, Italian Quattrocento. The Timurid Renaissance reached its peak in the 15th century, after the end of the period of Mongol invasions and conquests. Based on Islamic ideals, the foundations of the Timurid Renaissance inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Law Of Cosines
In trigonometry, the law of cosines (also known as the cosine formula or cosine rule) relates the lengths of the sides of a triangle to the cosine of one of its angles. For a triangle with sides , , and , opposite respective angles , , and (see Fig. 1), the law of cosines states: \begin c^2 &= a^2 + b^2 - 2ab\cos\gamma, \\[3mu] a^2 &= b^2+c^2-2bc\cos\alpha, \\[3mu] b^2 &= a^2+c^2-2ac\cos\beta. \end The law of cosines generalizes the Pythagorean theorem, which holds only for right triangles: if is a right angle then , and the law of cosines special case, reduces to . The law of cosines is useful for solution of triangles, solving a triangle when all three sides or two sides and their included angle are given. Use in solving triangles The theorem is used in solution of triangles, i.e., to find (see Figure 3): *the third side of a triangle if two sides and the angle between them is known: c = \sqrt\,; *the angles of a triangle if the three sides are known: \gamma = \arccos\l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islam
Islam is an Abrahamic religions, Abrahamic monotheistic religion based on the Quran, and the teachings of Muhammad. Adherents of Islam are called Muslims, who are estimated to number Islam by country, 2 billion worldwide and are the world's Major religious groups, second-largest religious population after Christians. Muslims believe that Islam is the complete and universal version of a Fitra, primordial faith that was revealed many times through earlier Prophets and messengers in Islam, prophets and messengers, including Adam in Islam, Adam, Noah in Islam, Noah, Abraham in Islam, Abraham, Moses in Islam, Moses, and Jesus in Islam, Jesus. Muslims consider the Quran to be the verbatim word of God in Islam, God and the unaltered, final revelation. Alongside the Quran, Muslims also believe in previous Islamic holy books, revelations, such as the Torah in Islam, Tawrat (the Torah), the Zabur (Psalms), and the Gospel in Islam, Injil (Gospel). They believe that Muhammad in Islam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic Golden Age
The Islamic Golden Age was a period of scientific, economic, and cultural flourishing in the history of Islam, traditionally dated from the 8th century to the 13th century. This period is traditionally understood to have begun during the reign of the Abbasid Caliphate, Abbasid caliph Harun al-Rashid (786 to 809) with the inauguration of the House of Wisdom, which saw Ulama, scholars from all over the Muslim world flock to Baghdad, the world's largest city at the time, to translate the known world's classical knowledge into Arabic and Persian language, Persian. The period is traditionally said to have ended with the collapse of the Abbasid caliphate due to Mongol invasions and conquests, Mongol invasions and the Siege of Baghdad (1258), Siege of Baghdad in 1258. There are a few alternative timelines. Some scholars extend the end date of the golden age to around 1350, including the Timurid Renaissance within it, while others place the end of the Islamic Golden Age as late as the en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timur
Timur, also known as Tamerlane (1320s17/18 February 1405), was a Turco-Mongol conqueror who founded the Timurid Empire in and around modern-day Afghanistan, Iran, and Central Asia, becoming the first ruler of the Timurid dynasty. An undefeated commander, he is widely regarded as one of the greatest military leaders and tacticians in history, as well as one of the most brutal and deadly. Timur is also considered a great patron of art and architecture, for he interacted with intellectuals such as Ibn Khaldun, Hafez, and Hafiz-i Abru and his reign introduced the Timurid Renaissance. Born into the Turkicized Mongol confederation of the Barlas in Transoxiana (in modern-day Uzbekistan) in the 1320s, Timur gained control of the western Chagatai Khanate by 1370. From that base he led military campaigns across Western, South, and Central Asia, the Caucasus, and Southern Russia, defeating in the process the Khans of the Golden Horde, the Mamluks of Egypt and Syria, the emerg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Africa and Asia. Europe is commonly considered to be Boundaries between the continents#Asia and Europe, separated from Asia by the Drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea, and the waterway of the Bosporus, Bosporus Strait. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and Europe ... is formed by the Ural Mountains, Ural River, Caspian Sea, Caucasus Mountains, and the Black Sea with its outlets, the Bosporus and Dardanelles." Europe covers approx. , or 2% of Earth#Surface, Earth's surface (6.8% of Earth's land area), making it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamshid Bin Mas'ud Bin Mahmud Known As Ghiyath (d
Jamshid () (, ''Jamshēd''; Middle- and New Persian: جم, ''Jam''), also known as ''Yima'' (Avestan: 𐬫𐬌𐬨𐬀 ''Yima''; Persian/Pashto: یما ''Yama''), is the fourth Shah of the mythological Pishdadian dynasty of Iran according to ''Shahnameh''. In Persian mythology and folklore, Jamshid is described as the fourth and greatest king of the epigraphically unattested Pishdadian Dynasty (before the Kayanian dynasty). This role is already alluded to in Zoroastrian scripture (e.g. '' Yasht'' 19, ''Vendidad'' 2), where the figure appears as ''Yima xšaēta'' () "radiant Yima", from which the name 'Jamshid' is derived. Both ''Jam'' and ''Jamshid'' remain common Iranian and Zoroastrian male names that are also popular in surrounding areas of Iran such as Afghanistan and Tajikistan. Edward FitzGerald transliterated the name as ''Jamshyd''. In the eastern regions of Greater Iran, and by the Zoroastrians of the Indian subcontinent it is rendered as '' Jamshed'' based on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persian People
Persians ( ), or the Persian people (), are an Iranian peoples, Iranian ethnic group from West Asia that came from an earlier group called the Proto-Iranians, which likely split from the Indo-Iranians in 1800 BCE from either Afghanistan or Central Asia. They are indigenous to the Iranian plateau and comprise the majority of the population of Iran.Iran Census Results 2016 United Nations Alongside having a Culture of Iran, common cultural system, they are native speakers of the Persian language and of the Western Iranian languages that are closely related to it. In the Western world, "Persian" was largely understood as a demonym for all Iranians rather than as an ethnonym for the Persian people, but this understanding Name of Iran, shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goharshad
Gawhar Shad (; meaning "joyful jewel" or "shining jewel"; also Gawhar Shad Begum, Gohar Shād or Gawharshâd; died 19 July 1457) was the chief consort of Shah Rukh, the emperor of the Timurid Empire. Life She was the daughter of Giāth ud-Din Tarkhān, an important and influential noble during Tīmur's reign. According to family traditions, the title '' Tarkhān'' was given to the family by Genghis Khan personally. Marriage Gawhar Shad was married to Shah Rukh probably in 1388, certainly before 1394 when their son, Ulugh Beg was born. It was a successful marriage, according to the ballads of Herat which sing of Shah Rukh's love for her. But little is known of their first forty years together, except what concerns her buildings. Along with her brothers who were administrators at the Timurid court in Herat, Gawhar Shad played a very important role in the early Timurid history. In 1405 she moved the Timurid capital from Samarkand to Herat. She was instrumental in the constructio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shah Rukh (Timurid Dynasty)
Shah Rukh or Shahrukh Mirza (, ''Šāhrokh''; 20 August 1377 – 13 March 1447) was the ruler of the Timurid Empire between 1405 and 1447. He was the son of the Central Asian conqueror Timur (Tamerlane), who founded the Timurid dynasty in 1370. However, Shah Rukh ruled only over the eastern portion of the empire established by his father, comprising most of Achaemenid Empire, Persia and Transoxiana, the western territories having been lost to invaders in the aftermath of Timur's death. In spite of this, Shah Rukh's empire remained a cohesive dominion of considerable extent throughout his reign, as well as a dominant power in Asia. Shah Rukh controlled the main trade routes between Asia and Europe, including the legendary Silk Road, and became immensely wealthy as a result. He chose to have his capital not in Samarqand as his father had done, but in Herat. This was to become the political centre of the Timurid empire and residence of his principal successors, though both cities b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics In Medieval Islam
Mathematics during the Golden Age of Islam, especially during the 9th and 10th centuries, was built upon syntheses of Greek mathematics (Euclid, Archimedes, Apollonius) and Indian mathematics (Aryabhata, Brahmagupta). Important developments of the period include extension of the place-value system to include decimal fractions, the systematised study of algebra and advances in geometry and trigonometry. The medieval Islamic world underwent significant developments in mathematics. Muhammad ibn Musa al-Khwārizmī played a key role in this transformation, introducing algebra as a distinct field in the 9th century. Al-Khwārizmī's approach, departing from earlier arithmetical traditions, laid the groundwork for the arithmetization of algebra, influencing mathematical thought for an extended period. Successors like Al-Karaji expanded on his work, contributing to advancements in various mathematical domains. The practicality and broad applicability of these mathematical metho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
