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Khan Academy is a philanthropically supported education site with a variety of content, such that there is something for anyone between 3 or 4 years old and Betty White. The site came about-like many great things in history - much by accident. Sal Khan was tutoring his niece remotely. Others found his videos and found them useful. Eventually, a decision was made to launch the site.

☀ All Khan Academy content is available for free at:

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