Ibn Bassal in the context of "Seville"

Al-Andalus (Arabic: الأَنْدَلُس, romanized: al-ʾAndalus) was the Muslim-ruled area of the Iberian Peninsula. The name refers to the different Muslim states that controlled these territories at various times between 711 and 1492. At its greatest geographical extent, it occupied most of the peninsula as well as Septimania under Umayyad rule. These boundaries changed through a series of conquests Western historiography has traditionally characterized as the Reconquista, eventually shrinking to the south and finally to the Emirate of Granada.

As a political domain, it successively constituted a province of the Umayyad Caliphate, initiated by the Caliph al-Walid I (711–750); the Emirate of Córdoba (c. 750–929); the Caliphate of Córdoba (929–1031); the first taifa kingdoms (1009–1110); the Almoravid Empire (1085–1145); the second taifa period (1140–1203); the Almohad Caliphate (1147–1238); the third taifa period (1232–1287); and ultimately the Nasrid Emirate of Granada (1238–1492). Under the Caliphate of Córdoba, the city of Córdoba became one of the leading cultural and economic centres throughout the Mediterranean Basin, Europe, and the Islamic world. Achievements that advanced Islamic and Western science came from al-Andalus, including major advances in trigonometry (Jabir ibn Aflah), astronomy (al-Zarqali), surgery (al-Zahrawi), pharmacology (Ibn Zuhr), and agronomy (Ibn Bassal and Abu'l-Khayr al-Ishbili). Al-Andalus became a conduit for cultural and scientific exchange between the Islamic and Christian worlds.

Science in the medieval Islamic world was the science developed and practised during the Islamic Golden Age under the Abbasid Caliphate of Baghdad, the Umayyads of Córdoba, the Abbadids of Seville, the Samanids, the Ziyarids and the Buyids in Persia and beyond, spanning the period roughly between 786 and 1258. Islamic scientific achievements encompassed a wide range of subject areas, especially astronomy, mathematics, and medicine. Other subjects of scientific inquiry included alchemy and chemistry, botany and agronomy, geography and cartography, ophthalmology, pharmacology, physics, and zoology.

Medieval Islamic science had practical purposes as well as the goal of understanding. For example, astronomy was useful for determining the Qibla, the direction in which to pray, botany had practical application in agriculture, as in the works of Ibn Bassal and Ibn al-'Awwam, and geography enabled Abu Zayd al-Balkhi to make accurate maps. Islamic mathematicians such as Al-Khwarizmi, Avicenna and Jamshīd al-Kāshī made advances in algebra, trigonometry, geometry and Arabic numerals. Islamic doctors described diseases like smallpox and measles, and challenged classical Greek medical theory. Al-Biruni, Avicenna and others described the preparation of hundreds of drugs made from medicinal plants and chemical compounds. Islamic physicists such as Ibn Al-Haytham, Al-Bīrūnī and others studied optics and mechanics as well as astronomy, and criticised Aristotle's view of motion.

The Arab Agricultural Revolution was the transformation in agriculture in the Old World during the Islamic Golden Age (8th to 13th centuries). The agronomic literature of the time, with major books by Ibn Bassal and Ibn al-'Awwam, demonstrates the extensive diffusion of useful plants to medieval Spain (al-Andalus), and the growth in Islamic scientific knowledge of agriculture and horticulture. Medieval Arab historians and geographers described al-Andalus as a fertile and prosperous region with abundant water, full of fruit from trees such as the olive and pomegranate. Archaeological evidence demonstrates improvements in animal husbandry and in irrigation such as with the saqiyah waterwheel. These changes made agriculture far more productive, supporting population growth, urbanisation, and increased stratification of society.

The revolution was first described by the historian Antonio Garcia Maceira in 1876. The name was coined by the historian Andrew Watson in an influential but at the time controversial 1974 paper. However, by 2014 it had proven useful to historians, and had been supported by findings in archaeology and archaeobotany.