Answer:
because they honestly didn't see it coming. The banks were booming. everyone was investing in stocks
Explanation:
Answer:Muslim astronomers improved the astrolabe around 850 A.D. With the use of the astrolabe, Muslim geographers were able to calculate the size and circumference of the Earth. ... Muslim mathematicians created trigonometry because astronomers needed a way to calculate the distance from earth to objects in the sky.
Explanation:
