what is the difference between a black tie and white tie event
White tie From the 1920s onward black tie slowly replaced white tie as the default evening wear for important events, so that by the 21st century white tie had become rare. White tie nowadays tends to be reserved for special ceremonies—especially state dinners—and a very select group of social events such as the Al Smith Memorial Dinner in New York, the Commemoration balls at Oxford University, certain May Balls at Cambridge University, the June ball at Durham University, the Christmas ball at Buckingham Palace, dinners of certain American hereditary societies, and very formal weddings. The Vienna Opera Ball and the Nobel Prize ceremony are white tie events, and some European universities retain it as the dress code for doctoral conferment ceremonies.
American football rules If a game is tied at the end of four quarters, overtime is played. In overtime, the coin is tossed to determine which team will possess the ball first. The winner of the coin toss can choose to give the ball or receive the ball. If the first possession results in a field goal, the other team is given possession to match or better the field goal; therefore continuing the game. If the first possession results in a touchdown or safety, the scoring team wins. During the regular season in the NFL, one overtime period is played (with each team receiving two time outs). If both teams are tied after the 10-minute overtime, the game officially ends in a tie. In the playoffs, 15-minute overtime periods continue until a winner is determined. Overtime follows after a three-minute intermission following the end of the regulation game. Prior to start of overtime, a coin flip is performed where the captain of the visiting team calls the toss. The team that wins the coin flip has the option to either receive the kickoff or choose the side of the field they wish to defend. Ties are rare in the NFL;[2] a game between the Minnesota Vikings and Green Bay Packers on September 16, 2018 ended in a 29â€“all draw. The previous occurrence was one week earlier, on September 9, 2018.