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Ibn Al-Kammad
Abu Jafar Ahmad ibn Yusuf ibn al‐Kammad () (died 1195) was a Muslim Arab astronomer born in Seville, Al-Andalus. He is known to have been educated in Cordoba by the students of Al-Zarqali. His works such as ''al Kawr ala al dawr, al Amad ala al abad'', and ''al Muqtabas'', which is a compilation of the two previous Zij, made him famous not only on the Iberian peninsula but across North Africa, and specifically Tunisia ) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , ..., where the astronomer Ibn Ishaq al-Tunisi wrote commentaries on his works. An astrological work, ''Kitāb Mafātīḥ alasrār'', (in which he states the duration of pregnancy depended on the horoscope) is also attributed to him and was strongly criticized by Ibn al‐Haim al‐Ishbili in the latter's ''al Zīj a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muslim
Muslims ( ar, المسلمون, , ) are people who adhere to Islam, a monotheistic religion belonging to the Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God of Abraham (or '' Allah'') as it was revealed to Muhammad, the main Islamic prophet. The majority of Muslims also follow the teachings and practices of Muhammad ('' sunnah'') as recorded in traditional accounts (''hadith''). With an estimated population of almost 1.9 billion followers as of 2020 year estimation, Muslims comprise more than 24.9% of the world's total population. In descending order, the percentage of people who identify as Muslims on each continental landmass stands at: 45% of Africa, 25% of Asia and Oceania (collectively), 6% of Europe, and 1% of the Americas. Additionally, in subdivided geographical regions, the figure stands at: 91% of the Middle East–North Africa, 90% of Central Asia, 65% of the Caucasus, 42% of Southeast As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibn Al‐Haim Al‐Ishbili
} Abu Muhammad Abd al-Haqq al‐Ghafiqi al‐Ishbili (), also known as Ibn al‐Hāʾim (fl. was a medieval Muslim astronomer and mathematician from Seville. He is known to modern scholars for his (1204/5), which was had a great influence on the development of Islamic astronomy and which has provided important information on astronomers from Al-Andalus, including the instrument maker and astrologer Al-Zarqali. Life Ibn al‐Hāʾim originated from Seville in Al-Andalus. As a student, he learnt mathematics using the works of the scholars Al-Jayyani and Jabir ibn Aflah. He probably worked in North Africa, at a time when the Almohad Caliphate ruled the region. Ibn al‐Hāʾim became proficient at mathematics and was familiar with the trigonometrical concepts introduced into al‐Andalus by the scholar Ibn Mu'adh al-Jayyani in the 11th century and developed during the next century by the astronomer and mathematician Jābir ibn Aflaḥ. In 1204/5 Ibn al‐Hāʾim wrote ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Unknown
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th-century Astronomers
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomers Of Al-Andalus
An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational (by analyzing the data) or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Types Astronomers usually fall under either of two main types: observational and theoretical. Observational astronomers make direct observations of celestial objects and analyze the data. In contrast, theoretical astronomers create and investigate models of things that cannot be observed. Because it takes millions to billions of years for a system of stars or a galaxy to complete a life cycle, astronomers must observe snapshots of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th-century Al-Andalus People
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th-century Arabs
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1195 Deaths
Year 1195 ( MCXCV) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events * June 1 – Battle of Shamkor: Georgians defeat the Ildenizids of Azerbaijan. * July 18 – Battle of Alarcos: Almohad ruler Abu Yusuf Ya'qub al-Mansur decisively defeats Castilian King Alfonso VIII. * The Priory of St Mary's is founded in Bushmead. * Alexius III Angelus overthrows Isaac II, and becomes Byzantine Emperor. Births * August 15 – Anthony of Padua, Portuguese preacher and saint (d. 1231) * Princess Shōshi of Japan (d. 1211) * Roger de Quincy, 2nd Earl of Winchester (d. 1265) Deaths * March 3 – Hugh de Puiset, bishop of Durham (b. c. 1125) * August 6 – Henry the Lion, Duke of Saxony and Bavaria (b. 1129) * October 13 – Gualdim Pais, Great Master of the Templars in Portugal (b. 1118) * December 17 – Baldwin V, Count of Hainaut Baldwin V of Hainaut (1150 – 17 December 1195) was count of Hainaut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibn Ishaq Al-Tunisi
Abū al‐ʿAbbās ibn Isḥāq al‐Tamīmī al‐Tūnisī ( ar, ابن اسحاق التونسي), was a 13th century Tunisian astronomer and the author of an important zij which inaugurated a new astronomical tradition in the Maghreb for centuries to come. Almost nothing is known about Ibn Isḥaq's life. Besides his unfinished zij, the only information about him comes from the North African scholars Ibn Khaldūn and Ibn al-Banna', which shows him being active in Marrakesh besides his native Tunisia. It could be deduced from his name that he belonged to the Banu Tamim tribe. Ibn Isḥaq's astronomical tables has only survived in a newly discovered manuscript edited by a later author. The anonymous author seems to have completed the work by adding canons for the tables. The work was partly based on an original observations made by Ibn Isḥaq himself and by a contemporary Jewish astronomer from Sicily, while on the other part it was based on Andalusian sources including the wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arab
The Arabs (singular: Arab; singular ar, عَرَبِيٌّ, DIN 31635: , , plural ar, عَرَب, DIN 31635: , Arabic pronunciation: ), also known as the Arab people, are an ethnic group mainly inhabiting the Arab world in Western Asia, North Africa, the Horn of Africa, and the western Indian Ocean islands (including the Comoros). An Arab diaspora is also present around the world in significant numbers, most notably in the Americas, Western Europe, Turkey, Indonesia, and Iran. In modern usage, the term "Arab" tends to refer to those who both carry that ethnic identity and speak Arabic as their native language. This contrasts with the narrower traditional definition, which refers to the descendants of the tribes of Arabia. The religion of Islam was developed in Arabia, and Classical Arabic serves as the language of Islamic literature. 93 percent of Arabs are Muslims (the remainder consisted mostly of Arab Christians), while Arab Muslims are only 20 percent of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunisia
) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , coordinates = , official_languages = Arabic Translation by the University of Bern: "Tunisia is a free State, independent and sovereign; its religion is the Islam, its language is Arabic, and its form is the Republic." , religion = , languages_type = Spoken languages , languages = Minority Dialects : Jerba Berber (Chelha) Matmata Berber Judeo-Tunisian Arabic (UNESCO CR) , languages2_type = Foreign languages , languages2 = , ethnic_groups = * 98% Arab * 2% Other , demonym = Tunisian , government_type = Unitary presidential republic , leader_title1 = President , leader_name1 = Kais Saied , leader_ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Africa
North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in the west, to Egypt's Suez Canal. Varying sources limit it to the countries of Algeria, Libya, Morocco, and Tunisia, a region that was known by the French during colonial times as "''Afrique du Nord''" and is known by Arabs as the Maghreb ("West", ''The western part of Arab World''). The United Nations definition includes Morocco, Algeria, Tunisia, Libya, Egypt, Sudan, and the Western Sahara, the territory disputed between Morocco and the Sahrawi Republic. The African Union definition includes the Western Sahara and Mauritania but not Sudan. When used in the term Middle East and North Africa (MENA), it often refers only to the countries of the Maghreb. North Africa includes the Spanish cities of Ceuta and Melilla, and plazas de s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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