Across
- 2. Created vaccination, mainly the vaccination for smallpox.
- 4. Who proved that food spoils.
- 7. ________ invented the "spinning jenny"
- 9. The inventor of the cotton gin.
Down
- 1. The process to manufacture steel is called?
- 3. __________ developed the very first steamboat.
- 5. Who had theories of capitalism and communism?
- 6. Morse code was developed by _________.
- 7. An inventor and mechanic that improved the steamboat engine.
- 8. who wrote the bible for capitalism?