The astrolabe was invented in ancient Greece, likely around the 2nd century BC. While the exact inventor remains unknown, Hipparchus is often credited with developing the concept.

Here's a breakdown:

* Ancient Greeks: Developed the first astrolabes and used them for astronomical observations and navigation.

* Muslims: Further developed and refined the astrolabe, integrating trigonometry and Arabic star names into their designs.

* Europeans: Learned about the astrolabe from the Muslims, particularly during the Middle Ages through trade and cultural exchange. They further improved the instrument, eventually making it a crucial tool for maritime navigation.

So, while the astrolabe originated with the Greeks, the Europeans acquired knowledge of it and its advancements through their interactions with the Muslim world.