Since when has Hatha Yoga (expounded by Indian sage Patanjali) become a Buddhist invention ?
Well, if you read Dan Brown's extensively researched novel, then everything you ever knew will be rearranged.
Dan's description of Pranayama is another joke.
Then there's what he has to say about Heaven and Hell in Hinduism and Buddhism. Perhaps that was his 11 year old daughter doing his research. His novel is very interesting and gripping, but due to the above blunders I wonder about the authenticity of the other 'researched' facts.
Read it if you seriously have no other reason for existence. (My mom asked me to read it, so like a good 40 year old, i did).