This is one of the best all around sites that I have found. It is titled “The MacTutor History of

Mathematics Archive.”**
**http://www-history.mcs.st-and.ac.uk/~history/

This is an award-winning site that links to all sorts of mathematics information.**
**http://archives.math.utk.edu/

Here are the biographical sites related to this section:

**Euclid:** http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Euclid.html

**Proclus:** http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Proclus.html

**Legendre:**

http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Legendre.html

**Bolyai:**

http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Bolyai.html

**Playfair:**

http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Playfair.html

**Lambert:**http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Lambert.html

**Gauss:**

http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Gauss.html

**Lobachevski:**

http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Lobachevsky.html

**Riemann:**

http://www-history.mcs.st-and.ac.uk/~history/Mathematicians/Riemann.html