<http://schema.org/alternativeHeadline>
"Punch in your birth date and this site will reveal just how much the world has changed in your lifetime."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/blogs/bbcs-your-life-on-earth-offers-personal-snapshot-of-a-changing-world>