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Abū Jaʿfar Al-Ghāfiqī
Abū Jaʿfar al-Ghāfiqī (uncertain birth and death dates), was an 11th-century Andalusian Arab botanist, pharmacologist, physician and scholar from Ghafiq near Cordoba in the southern Iberian peninsula called al-Andalus, a region of mixed cultures, religions, and languages. In modern literature, he is commonly mistakenly identified as a 12th-century scholar who died around 1165. Nonetheless, the oldest copy of his only known work is dated 1111, implying that he lived at least part of his life in the 11th century. He was responsible for the collating and creating of 'Kitāb fī l-adwiya al-mufrada' (“Book of simple drugs”), a remarkable compendium of some 400 hand-drawn and coloured images of plants and animals, popularly known as the “Herbal of al-Ghafiqi". The Herbal draws on ancient Greek sources like Dioscorides and Galen and more than thirty other works from India and the Hellenistic and Islamic worlds. Sir William Osler purchased a manuscript copy of the Herbal in 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th-century Scientists
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] |
