1. Who invented Relativity Theory ?

Answer: Einstein of Germany in 1905.

2. Who invented Vitamin B1 ?

Answer:

Casimir Funk discovered in 1912

3. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

4. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

5. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.

6. Who invented Printing Press ?

Answer:

Johannes Gutenberg

7. Who invented Aspirin ?

Answer:

Felix Hoffmann invented Aspirin