During the Middle-Ages, the African city of Taghaza (located in modern day Mali and known as one of the hottest and driest places on Earth, it gets 11 millimeters of rain a year and the average high temperature from April to September is over 100 degrees) quarried salt sent to market in Timbuktu (also in Mali). With the climate being so hot and dry, locals used salt blocks for construction of buildings. Compared to other towns without salt was the demand for wood more or less elastic in Taghaza? Why