We have all been there. An invitation arrives in your mailbox, you open and instantly read the dress code: It's black tie. But what does black tie mean in an age when everything seems to be casual ...

the invitation message read. The text then reminded guests of the black-tie dress code, requesting that men dress in "sharp black suits" and women arrive in "elegant black evening gowns ...

Getty Later, the poster received the official wedding invitation via email, which noted that the affair was a black-tie event and would be held outside in Manhattan. In addition, the couple noted ...