Three fashion institutions are ringing in anniversaries. Chloé celebrates 60 years with the exhibition “Attitudes,” opening Sept. 29 at Paris’ Palais de Tokyo. Calvin Klein Underwear fetes its 30th with a new line, the Modern Classic. And Bergdorf Goodman thinks outside the box by marking its 111th anniversary this month with a documentary film (Scatter My Ashes at Bergdorf’s) and exclusive commemorative items from more than 100 designers, including Prada, Eddie Borgo and John Derian.