End of Tuxedo Era in DC

James Bond Skyfall Tuxedo Midnight Blue
no copyright infringement intended

Tuxedo in DC entered the endangered-species list. Washington is embracing the new casual and invitations now specify cocktail attire.

But to make a long history short, here's a column in Washington Post:

The End of the Penguin Suit; Tuxedos Back in the Closet, Getting Dusty

Cool Tips for Cocktail Attire
no copyright infringement intended

(Washington, District of Columbia)