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) also made the day less important. A Gallup poll in 2012 has shown that only 18% of American adults approve of Black Friday, which is significantly lower than the percentage of American adults that approve of the controversial holiday Columbus Day, which is at 58%. The large population centers on Lake Ontario and the Lower Mainland in Canada have always attracted cross-border shopping into the US states, and as Black Friday became more popular in the US, Canadians often flocked to the US because of their lower prices and a stronger Canadian dollar. After 2001, many were traveling for the