Google representatives unveiled a significant enhancement to the company's ubiquitous search engine. They're calling it the "Knowledge Graph ", claiming it will support "more intelligent searching for real-world things on the internet".
About a year ago, Google acquired Freebase, an "open, shared database of the world's knowledge". It's a repository of structured knowledge, describing over 20 million entities, each with a unique identifier, a type (eg. people, place, book, film, building, etc) and a set of properties (eg. date of birth for a person, latitude and longitude for a place, etc).