Read about the Saurian Empire, on WilWheaton.net.
So what you see here is an early rendering of our lizardpeople race, who we call Saurians. In the history of Valkana, the Saurians were the dominant species for a very long time, due to their mastery of technology. While the other indigenous species were crawling up out of the mud, the Saurians built mighty war machines, and dominated the world. They enslaved the Orcs (the Orcs are still pretty upset about this) and subjugated the Elves, Dwarves, and Cloustra, among others.