The Open Clip Art Library (acronym OCAL) project aims to create a collection of vector clip art that are free content. The project was started in early 2004 by Jon Phillips and Bryce Harrington to collect a great amount of flags from all around the world. It progressed very well at this time, so the definition of the project goals were extented to generic clipart, and as of October 2007 it incorporated over 10,000 images from over 500 artists, and offers the entire collection for free download. All images have been dedicated to the public domain by their contributors. They are stored in Scalable Vector Graphics (SVG) format, often with thumbnails in Portable Network Graphics (PNG) format.