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Raghavan Iyer, author of the cookbook 660 Curries, presents Curried Culinary History, covering 6,000 years of spices in India, Saturday at 10 at the Chicago History Museum. There will also be a sampling of several of Iyer’s curries ($5; 708-788-0338 or rsvpchc@yahoo.com). Afterward he’ll be at Marigold for a 12:30 PM book signing and four-course lunch with wine pairings; among the dishes are kadhai paneer with spring vegetables and lamb in a Kashmiri curry ($65).

Saturday and Sunday from 11 AM to closing time (3 AM Sat, 2 AM Sun; food served until 10 PM) is the fifth annual all-you-can-eat “Rockin’ Crawfish Boil” at Blue Bayou, featuring New Orleans-style jambalaya, gumbo, corn bread, Abita beer (brewed in Louisiana), and, of course, crawfish–shipped in live from New Orleans. There’ll be music from Hurricane Gumbo (4 PM Sat), the Flood Brothers (9 PM Sat), the Cook County Jazz Commission (noon Sun), and Forte (8 PM Sun), as well as a French Quarter burlesque show by Michelle L’Amour (11 PM Sun). $25 per day.