In which decade did the last human set foot on the moon?
a. 1960s
b. 1970s
c. 1980s
d. 1990s

After the united states declared war on germany, approximately how long did it take for over a million american troops to arrive in europe? a.) two months b.) two years c.) one month d.) one year

The american civil war most former enslaved african americans in texas began making a living as

The development of greek culture was most influenced by the dorian invasion the region’s climate and geography the trojan war indo-european migrations