Who was the first European explorer to sail around the southern tip of Africa?

Explanation:

In 1488, Portuguese explorer Bartolomeu Dias (c. 1450-1500) became the first European mariner to round the southern tip of Africa, opening the way for a sea route from Europe to Asia. Dias’ ships rounded the perilous Cape of Good Hope and then sailed around Africa’s southernmost point, Cabo das Agulhas, to enter the waters of the Indian Ocean.

the us hoped to prevent any nations from leaning towards soviet union-based communism. the containment policy was established in hopes of keeping communism from spreading to new places.