- Before 1700s
- 1700s
- 1800s
- 1900s
- Early 1900s
- 1930s
- 1940s
- 1950s
- 1960s
- 1970s
- 1980s
- 1990s
- 2000s
By Jamie Berke, About.com Guide
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
Learn how to save money on medications with these recommendations. More >
Keep yourself, and your family, happy and healthy this fall with these tips. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.