FEB 02, 2018
The Dow plummets 666 points as stock market caps off worst week in two years
https://www.nydailynews.com/news/national/dow-falls-666-points-market-ends-worst-week-years-article-1.3795600
Stock market DIVE [666 - coincidence?].
History has an odd way of repeating itself.
#666 = 3-year delta Friday.