B. Horses. I doubt they'd kill their own mounts unless they had to.
The Space Race. One of the most important forms of non-violent competition between the U.S. and the USSR during the Cold War was the Space Race, with the Soviets taking an early lead in 1957 with the launching of Sputnik, the first artificial satellite, followed by the first manned flight.
Roman architectural traditions, which borrowed from the Greek and pre-Roman cultures, were preserved in the region.
It is primary because it is the official process of methodically collecting information about a certain topic in a specific time period
