We went to the Cotton Museum at the Memphis Cotton Exchange and found it very interesting. Memphis was and is the world's center for "spot cotton" or cash crop trading. The cotton economy completely defined 150 years of the city's history. Cotton is considered to be the plant that changed the world. The 1st picture was a display of various grades of cotton. The 2nd picture is a room where from 1923 to the early 1980's, cotton traders gathered to see the latest market prices that were delivered via teletype and telegraph.