- Have any questions?
- [email protected]
- Home
- In what year did the following events take place: Jonas Salk began testing his polio vaccine on volunteers, including his wife, his children and himself.
Question 1:
In what year did the following events take place: Jonas Salk began testing his polio vaccine on volunteers, including his wife, his children and himself. The first animal, a tadpole, was cloned. The New York Yankees defeated the Brooklyn Dodgers in the World Series.
A. 1956
B. 1950
C. 1952
D. 1954
These questions are from this test. Would you like to take a practice test?