Black Friday or Black Friday arrives in Vigo with discounts stolen from the January sales, land problems where all dreams of success: America.

Various theories explain the origin of this day;

_A theory says that this tradition is given to the accounting numbers in red, the Friday after the American Thanksgiving Day, it was torn in black on its balance sheet as it streamlined and increased purchases due to discounts designed for this day.

Another theory is that his birth is due to the 50s, in which the Friday before the game between the navy and the army in Philadelphia, spectators who arrived in the city took the opportunity to make Christmas purchases, which made surveillance in the streets became continuous. With what the police were forced to a long day of work they called Black Friday.

Nowadays more and more sales volume occurs online and not in person and the previous days you can find offers.

Then there is the cyber monday in which the online sales for computer and technology products are extended: it is the Monday after Thanksgiving (fourth Thursday of November) with products such as those found in Amazon: