Black Friday?

What is Black Friday? This was all over the internet and after awhile, my normal non-curious self got a little too curious and went to define: black friday. The results were totally different from what it appeared to be - all were in the negative sense. On various webpages, there were advertisements on discounts and more discounts on this Black Friday. After awhile, my don't-give-a-damn self got the better of me and I forgot all about it until I came to this page that defines the true meaning of the current Friday:

The day after Thanksgiving in the United States. Retailers generally see an upward spike in sales and consider this to be the start of the holiday shopping season. It's common for retailers to offer special promotions and to open early to draw in customers.

and...

The idea behind the term "Black Friday" is that this is the day in which retail stores have enough sales to put them "in the black" - an accounting expression that alludes to the practice of recording losses in red and profits in black.