Bing found the following results
Apache Subversion
Apache Subversion - Wikipedia
Apache Subversion: Quick Start
Subversion Documentation
Version Tracking With Subversion (SVN) For Beginners - How-To Geek
Getting Started With Subversion | ServerWatch
Subversion basics - Apache Infrastructure Website
A Crash Course in Subversion | Developer.com
Subversion Basics - The Apache Software Foundation
Subversion Definition & Meaning - Merriam-Webster