DynaText, an Electronic Publishing Tool

In 1990 Louis Reynolds, Steven DeRose, Jeffrey Vogel, and Andries van Dam founded Electronic Book Technologies, Inc. (EBT) in Providence, Rhode Island to promote and sell DynaText, an electronic publishing tool. DynaText was the first system to handle arbitrarily large SGML (Standard Generalized Markup Language) documents, and to render them according to multiple style-sheets that could be switched at will.

"DynaText heavily influenced stylesheet technologies such as DSSSL and CSS, and XML chairman Jon Bosak cites EBT chief architect Steven DeRose as the origin of the notion of well-formedness formalized in XML, as well as DynaText for influencing the design of Web browsers in general" (Wikipedia article on DynaText, accessed 11-08-2013).