GENERAL KNOWLEDGE

Detailed explanation-1: -Invented by the Ancient Greeks and further developed by medieval Muslim scholars in the Middle East, the astrolabe has been put to use in the science of pure astronomy, navigation, time-keeping, and religious practice.

Detailed explanation-2: -The astrolabe was likely invented in Ancient Greece around 225 BCE and was based on the research of Hipparchus. But the device was refined in the Middle East over the course of several centuries, and eventually the Arabic astrolabe was reintroduced into medieval Europe in the 12th century.

Detailed explanation-3: -Astrolabes have been traced to the 6th century, and they appear to have come into wide use from the early Middle Ages in Europe and the Islamic world. By about the mid-15th century, astrolabes were adopted by mariners and used in celestial navigation.