Black Friday (shopping) stories resurface year upon year at this time, portraying hysteria and shortage of stock, creating a state of positive feedback. In 2014, spending volume on Black Friday fell for the first time since the 2008 recession. $50.9 billion was spent during the 4-day Black Friday weekend, down 11% from the previous year. However, the U.S. economy was not in a recession. Christmas creep has been cited as a factor in the diminishing importance of Black Friday, as many retailers now spread out their promotions over the entire months of November and December rather than concentrate them on a single shopping
Leap year starting on Friday share this characteristic. Leap years that begin on Friday, along with those that start on Sunday, occur most frequently: 15 out of the 97 (≈ 15.5%) total leap years in a 400-year cycle of the Gregorian calendar. Thus, the overall occurrence is thus 3.75% (15 out of 400). Like all leap year types, the one starting with 1 January on a Friday occurs exactly once in a 28-year cycle in the Julian calendar, i.e. in 3.57% of years. As the Julian calendar repeats after 28 years that means it will also repeat after 700 years, i.e. 25 cycles. The year's