Knock at the door, One fat lady, Rugby team, Sweet sixteen, A duck and a flea, The famous street in Manhattan. No, those weren’t bloopers, although I’m sure this episode will have plenty. Those were actually number nicknames used in a particular game that’s been around for 500 years we’ll be talking about today. This isn’t your granny’s church basement version, either. I’m your host, Emily Prokop, and this is The Story Behind Bingo.