An anniversary worth celebrating

[Swede]

Yes it certainly is.


In the 20th century, smallpox is estimated to have killed hundreds of millions of people. Hundreds of millions. Imagine the United States — the entire country, from the Pacific to the Atlantic — empty, devoid of people, dead. Smallpox wiped out that many people with room to spare.

And yet, today, it’s gone.


http://blogs.discovermagazine.com/badastronomy/2009/10/26/an-anniversary-worth-celebrating/