Oh, and dress-codes. There's 'morning-suit attire' which differentiates itself from the more casual suit -- morning-suits being a more traditional, waistcoat-and-particular-kind-of-tie suit. Morning-suit attire also defines the dress-code for the ladies; hats are worn in association with a particular kind of dress but originated because one wore hats to church and weddings happened in a church -- cover your head when you went to church, etc.