Christmas Price Index chose the items in the popular Christmas carol "The Twelve Days of Christmas" as its market basket: a partridge in a pear tree, two turtle doves, three French hens, four calling birds, five gold(en) rings, six geese, seven swans, eight maids, nine dancing ladies, ten leaping lords, eleven pipers, and twelve drummers. According to tradition, the purchasing of the items begins on December 26 and ends on January 6. PNC compiles both a "Christmas Price Index" and "The True Cost of Christmas." The "Christmas Price Index" is calculated by adding the cost of the items in the song. The "True
Twelve Days of Christmas Christian. On this see the articles on "Christmas" and "Christmas traditions". 26 December is "St. Stephen's Day", a feast day in the Western Church. In Great Britain and its former colonies, it is also the secular holiday of Boxing Day. In some parts of Ireland it is denominated "Wren Day". New Year's Eve on 31 December is the feast of Pope St. Sylvester I and is known also as "Silvester". The transition that evening to the new year is an occasion for secular festivities in many nations, and in several languages is known as "St. Sylvester Night" ("Notte di San