·sputnik
· cuban missile crisis
· bay of pigs
· berlin wall

these items are most associated with which of these eras?

a) cold war

b) world war i

c) world war ii

d) communist revolution

a

Explanation:

all of these were directly caused by the soviet union so b and d are wrong and the space race began after the second world war when soviets and americans caoght german rocket scintest aafter the thrid reich was defeted

leading to this being b as sputnik was the satilite that began the fear of failing behind in america

the answer is a) the proclamation of 1763.