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10th century – Large astrolabe of diameter 1.4 meters constructed by Ibn Yunus [5] 994 – First sextant constructed in Ray, Iran , by Abu-Mahmud al-Khujandi . It was a very large mural sextant that achieved a high level of accuracy for astronomical measurements.
4th to 5th centuries: The modern fundamental trigonometric functions, sine and cosine, are described in the Siddhantas of India. [75] This formulation of trigonometry is an improvement over the earlier Greek functions, in that it lends itself more seamlessly to polar co-ordinates and the later complex interpretation of the trigonometric functions.
List of years; Timelines of world history; List of timelines; Chronology; See calendar and list of calendars for other groupings of years.; See history, history by period, and periodization for different organizations of historical events.
For events dating from the formation of the planet to the rise of modern humans see: Timeline of natural history, Timeline of the evolutionary history of life and Timeline of human evolution. For events dating from the first appearance of Homo sapiens to before the invention of writing see: Timeline of prehistory
{{Include timeline}}, an easy way of including editable template-based horizontal or vertical graphical timelines. mw:Extension:EasyTimeline, editable code-based timelines using Erik Zachte's extension for MediaWiki, <timeline>
The date used as the end of the ancient era is arbitrary. The transition period from Classical Antiquity to the Early Middle Ages is known as Late Antiquity.Late Antiquity is a periodization used by historians to describe the transitional centuries from Classical Antiquity to the Middle Ages, in both mainland Europe and the Mediterranean world: generally from the end of the Roman Empire's ...
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[1] 1470 – Cape Palmas is passed. [3] 1472 – Fernão do Pó lands on the island of Bioko. [4] 1473 – Lopo Gonçalves is the first European sailor to cross the Equator. [3] [4] 1474–75 – Ruy de Sequeira discovers São Tomé and Príncipe. [4] 1482 – Diogo Cão reaches the Congo River, where he erects a padrão ("pillar of stone"). [4]