For both kinds of info you can go to the Swiki.
Where can I find the history of Smalltalk and Squeak?
Linked from the front page is this page:
"The history of Squeak" http://minnow.cc.gatech.edu/squeak/389
It has Squeak's history, and I'm sure you can get to the history of Smalltalk in general from there.
There used to be a tutorial by Wolfgang Kreutzer which seems to have gone missing.
I don't know about that particular tutorial, but there is a huge mountain of introductory material at:
"Introductions to Squeak" http://minnow.cc.gatech.edu/squeak/377
which is also linked from the front page of the Swiki. So if you are interested in Squeak, definitely spend some time perusing the Swiki!
-Lex