<http://schema.org/about>
"Created around 1900 in France for the World Exhibition in Paris, these drawings show what the future was predicted to be at the time.  A lot of them are about crazy modes of transportation. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/aviation/future-aint-what-it-used-be/>