What did the Mayan people use to keep time and why?

What was the significance other than the obvious harm to us forces of the terror attack on the uss cole in 2000

How does the pyramid of giza include art, science, math, or a need for infrastructure?

Before the invention of the loom in 1785, textile manufacturing was: a) regulated under the guild system. b) performed by children working in factories. c) produced in rural cottages under a putting-out system. d) conducted by british colonists overseas.