In general, the purpose of a nonfiction writer is to "inform", although of course it is quite possible for such a writer to entertain at the same time, since information can often be quite entertaining.
National Association of Colored Women's Club, temperance movement(prohibition of alcohol, women's rights for suffrage, etc.
Around the 14th century, the cities of Nanjing, Calicut, Mogadishu and Venice was significant because the major center's of trading activity flourished there.