Which of the following did NOT happen during the 1950s? a. Sputnik
b. Passage of the Civil Rights Act.
c. Brown v. Board of Education
d. "Leave it to Beaver"

b. Passage of the Civil Rights Act.

Explanation:

The passage of the Civil Rights Act did not occur during the 1950s. It is also called the Civil Rights Act of 1964 because that is when it was actually passed. Sputnik launched in 1957, Brown v. Board of education was 1954, and "Leave it to Beaver" began in 1957.

d. dr. francis collins