Google's LIFE Photo Archive

I just discovered Google's newest feature (I think it's the newest one): the LIFE photo archive, available from the Google Images page. According to Google, you can "search millions of photographs from the LIFE photo archive, stretching from the 1750s to today. Most were never published and are now available for the first time through the joint work of LIFE and Google."

I'm wondering what kind of photographs were available in the 1750s. Guess I'll have to sneak a peek! With "millions of photographs," there's got to be something there for everyone. What a great resource for students, teachers, librarians and anyone interested in some great photography!

http://images.google.com/imghp?hl=en&tab=wi