jul 19, 201 BC - Astrolabe
Description:
An instrument for observing the positions of heavenly bodies (stars) that was used before the sextant was invented.
Invented in 200 BC
Invented by Greek astronomer, Hipparchus
Added to timeline:
Social Studies: Chapter 3: Exploration and Technology
Mrs. Riopelle's 5th Grade Class
Date:
Images:
![]()
