Which invention, first created during the Han dynasty but perfected
during the Tang dynasty, used the Earth's magnetic field to show
direction?

Western sahara is occupied by whom? a. mauritania b.algeria c. morocco d. tunisia

Why did reagan have the united stars invade grenada

Define the word imperialism. what is your opinion: should the u.s. engage in imperialism? under what circumstances? offer a brief, effective argument against the opinion that you hold.