Until 2009, the human clitoris was an absolute mystery
io9.com
io9.com
I have no objection to exploration of the female body and was sufficiently interested in the subject beforehand to find the claim that this part of it 'was an absolute mystery until 2009' to be nonsensical.
Sensationalist wording is the hall mark of most journalism and isn't all that bad — it makes people read your stuff, and is used by a _lot_ of blog posts making their way to HN.(Hours are bullshit, Disrupting X, Why I hate Technology Y, etc.)