<http://schema.org/about>
"California's rock-and-roll reputation was set more than a century ago, when a devastating earthquake flattened San Francisco in 1906."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/san-franciscos-deadly-1906-earthquake-was-last-of-three>