If you are interested in history, you soon realize bucket loads of it has helped change our present, and this is very true for Naval history.
This is a story about the USS Cairo which really came about as a new concept in river gunboats. One of these new concepts were known as "Pook's Turtles" or City-class gunboats. Many at the time also referred to these gunboats as "Jim Eads gunboats."
So, if you care to give this article a go it will tell you what the Cairo was involved in, also about her concept from James Buchanan Eads shipyards....and the salvage operations to raise the Cairo in the 1960's.
CLICK : HERE