With that being said, jQuery.X was born. When it was first started, I called it PageJS because I didn't want the company to know that I embedded a lite version of jQuery to handle the DOM. Much of the jQuery version I included in the minified file I provided them was missing. I really only included the DOM manipulation part of the library. It started out as a simple MVVM but very quickly evolved into a fully featured library including many of the features that you would expect with an MVVM.
After the company I was working with went under, I took the core ideas of the library and created the first version of jQuery.X. To be clear, PageJS belongs to the company I worked with, but I took some of the patterns and implemented them within the open source version!