(1/11) This term, I’ve taught a seminar @IslamicSt_UniFR called “Little Ice Ages and Mighty Microbes. What Environmental History Can Tell Us about the #MiddleEast”. These are some of the things that I’ve learned. A thread. #twitterstorians #environmentalhistory

(2/11) The Arab invasion of #Iran led to a cotton boom – until the 11th century. Then a “big chill” made agriculture detract. Leading Sunni scholars moved elsewhere &bimportant madrasas closed. This helped to eventually convert Iran into Shi’i-majority lands in the 16th century.

(3/11) The “golden age” of the Ottoman Empire saw the conquest of Egypt. With grain (incl. rats/fleas) now being shipped in huge quantities from Alexandria to #Istanbul, the capital became a constant “plague hub” (which, in turn, dramatically increased Ottoman medical knowledge).

(4/11) At the same time, several #Ottoman provinces were already operating at the ecological limit while still being forced to provide Istanbul with animals. When the Little Ice Age hit these semiarid areas in the late 16th century, significant rebellions & crises ensued.

(5/11) Not only humans suffered but animals, too. Epizootics killed livestock in 18th century #Egypt, which made peasants become more dependent on large landholders. Consequently, “changes in nature of rural labor degraded the lives of both beast and man.”