It is hard to know who first had the idea of creating a language on the World Wide Web that could be used to express the domain knowledge needed to improve Web applications. By the mid 1990s, before most people even knew the Web existed, several research groups were playing with the idea that if web markup (it was all HTML back then) contained some machine readable “hints” to the computer, then we could do a better job of Web tasks like search, query, and faceted browsing. It’s important to note that at that time, the potential power of the Web was still being debated, and there were many who were sure it would fail. However, by 1997 or so, it was clear theWeb was going to be around for a while, and there was a burst of energy going on. [download]
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