history

No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.
When I despair, I remember that all through history the way of truth and love have always won. There have been tyrants and murderers, and for a time, they can seem invincible, but in the end, they always fall. Think of it--always.
the history of polio
1. A pesticide common in the 1800’s was called Paris Green. A green liquid because it was a combination of copper and arsenic or lead [...]