CNBC: Brent crude oil spikes the most in history after Saudi attacks, last up 10%

CNBC: Brent crude oil spikes the most in history after Saudi attacks, last up 10% https://www.cnbc.com/2019/09/15/us-crude-oil-jumps-15percent-after-drone-strikes-disrupt-saudi-crude-production.html

State of Russian Economy

http://www.focus-economics.com/countries/russia

Wall Street Braces for NYC Blizzard

http://www.wsj.com/articles/u-s-bond-markets-to-stay-open-in-spite-of-nyc-blizzard-forecast-1422284468

Economic impact of September 11, 2001 terrorist attack

http://en.wikipedia.org/wiki/Economic_effects_arising_from_the_September_11_attacks

Recessions:

http://www.calculatedriskblog.com/2012/10/real-gdp-increased-20-annual-rate-in-q3.html
http://en.wikipedia.org/wiki/List_of_recessions_in_the_United_States