Friday the 13th etc.) of the year. Any month that starts on a Sunday contains a Friday the 13th, and there is at least one Friday the 13th in every calendar year. There can be as many as three Friday the 13ths in a single calendar year; either in February, March and November in a common year starting on Thursday (such as 2009, 2015 or 2026) (D), or January, April and July in a leap year starting on Sunday (such as 2012) (AG). The longest period that occurs without a Friday the 13th is 14 months, either from July to September the following
Black Friday (shopping) media usually give heavy play to reports of Black Friday shopping and their implications for the commercial success of the Christmas shopping season, but the relationship between Black Friday sales and retail sales for the full holiday season is quite weak and may even be negative. On April 23, 2014, ".blackfriday" joined a growing list of ICANN top-level domains (such as—traditionally—.com, .net, and .org). In 2015, Neil Stern of McMillan Doolittle said, "Black Friday is quickly losing its meaning on many fronts," because many stores opened on Thanksgiving, and a lot of sales started even earlier than that. Online shopping