What’s This Thing Called Google Knowledge Graph?

Do you remember the first search engine you ever used? Was it Alta Vista? (That dates some of us.) Was it Google? Have you noticed how search has changed over the years? Some search engines no longer exist, new ones arrive on the scene (and sometimes depart pretty quickly) and others change in order to remain relevant. The world of search is not static and Google’s Knowledge Graph that launched recently shows just how true that is.
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