Bridesmaids
The bride having numerous bridesmaids is another custom originating from Roman times. In those days, the bride needed 10 witnesses, who were usually dressed identically to them. The reason was simple, to confuse evil spirits attempting to attack the bride, or foil the attacks of a rejected suitor who wanted to kidnap her.
Luckily, these days, all they have to do on the big day is turn up and smile.