National Geographic : 1950 Feb
Cairo Association ofCommerce The Ohio, Flowing in from Upper Right, Pours into the Muddy Mississippi, Left, a Short Distance Below Cairo, Illinois That white line enclosing Cairo is the huge earthen levee which, since 1858, has saved the city from disastrous floods. From the earliest days ofAmerican history, this city squeezed between two mighty rivers has played an important role. First, Marquette passed this way in 1673; then La Salle and George Rogers Clark. Gen. Andrew Jackson camped here in 1813, and Gen. Ulysses S. Grant used the city as a base to capture Forts Henry andDonelson and then Vicksburg.