What are some of the innovations/technologies that put the maya, inca, or aztecs "ahead of their time"

Which of the following could affect the human population? a hurricane makes landfall on an uninhabited island. a deadly virus emerges that can pass from human to human. a civil war breaks out in italy. a solar eclipse occurs.

What actions did americans take to show their patriotism after peal harbor

How can we stop u.s. military drone strikes from hurting innocent people