"Edge pretended to be Chrome, and Chrome pretended to be Safari, and Safari pretended to be Mozilla. And Edge used EdgeHTML but revealed it not, and Chrome used Blink, but revealed it not, but Chrome pretended to use WebKit. And Webkit pretended to be KHTML, and KHTML pretended to be Gecko. And confusion abounded excessively on the face of the web."
A quote from a post on a web master forum about the structural source code behind various popular web browsers many people use today.