Book excerpt: Did you know ... ... the Confederate submarine H.L. Hunley was a privately owned vessel and not built by the Confederate government? ... the owners of the H.L. Hunley were given a Letter of Marque by the Confederate government to sink Union shipping for a profit? ... the original investment to build the H.L. Hunley was $15,000 ($300,000 in today's currency)? ... the Confederacy put a value of $27,500 on the submarine ($550,000 in today's currency)? ... the submarine made many patrols for it sank the USS Housatonic, including three its first week in Charleston? ... the submarine sank three times, killing members of its crew each time? ... for more than 100 years searchers were looking in the wrong location for the H.L. Hunley because of a misunderstood 19th century term? ... the transcripts of an official United States Navy Inquiry prove the H.L. Hunley survived the attack on the USS Housatonic? ... two men, prominent in their respective fields, both claim they found the H.L. Hunley?