In honor of Fidel Castro’s retirement, Chez Henri, the Cambridge Latin-French owned by chef Paul O’Connell, will throw a food-and-drink-filled party on Sunday, April 20th (7 PM; $39; 617-354-8980). The evening kicks off a six-week Latin dinner series that'll feature three-course dinners every night; the menu will change every two weeks, beginning with Cuba, then on to Venezuela and finishing with Ecuador (7 PM; $39 per person; 617-354-8980).