Why were americans nervous about growing communist power?

Mayan people were known for participating in which of the following activities? road construction stargazing storytelling quipu weaving

What event started the space race and made americans feel their security was threatened a.) alan shepard's suborbital flight. b.) the launch of sputnik c.) the launch of explorer d.) the cuban missle crisis

How has the presence of día de los muertos in mainstream media impacted the acceptance and celebration of the holiday?