Why did General Grant besiege Petersburg?

The middle east is the best association with which international traded product

Alot of points! ! what was the greatest achievement of el libertador, simón bolívar? a. he became a military strongman in peru. b. he freed venezuelans from spanish rule. c. he bernardo o'higgins liberate chile. d. he united mexicans of all races against spain.

What river systems the worlds earliest known civilization develop ?