(e.g., 1901: He received the first trans-Atlantic radio signal. Answer: Guglielmo Marconi.)

Freshman Level

1. 1903: He made a heavier-than-air flight with a gasoline engine.

2. 1905: He formulated his theory of special relativity.

3. 1945: These two Japanese cities were hit with atomic bombs.

Graduate Level

4. 1925: In this trial, a teacher was found guilty of teaching evolution in class.

5. 1946: His "The Common Sense Book of Baby and Child Care" was published.

6. 1952: He developed and tested the first polio vaccine.

Ph.D. Level

7. 1913: He presented his quantum model of the atom.

8. 1924: He announced that the Milky Way is just one of many such galaxies.

9. 1996: This adult sheep was successfully cloned.


1. Orville Wright.

2. Albert Einstein.

3. Hiroshima and Nagasaki.

4. Scopes Trial.

5. Dr. Benjamin Spock.

6. Jonas Salk.

7. Niels Bohr.

8. Edwin Hubble.

9. Dolly.

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