https://www.onthisday.com/events/february/14
http://www.thepeoplehistory.com/february14th.html
http://www.brproud.com/news/local-news/deadly-valentines-day-in-baton-rouge/656162774
https://en.wikipedia.org/wiki/Saint_Valentine%27s_Day_Massacre
http://www.nytimes.com/1993/02/16/world/fire-kills-79-people-in-department-store-in-northeast-china.html
https://en.wikipedia.org/wiki/Transvaal_Park
https://en.wikipedia.org/wiki/Stardust_fire
https://en.wikipedia.org/wiki/Terrorism_in_the_Philippines#2005
http://content.time.com/time/nation/article/0,8599,1714069,00.html
https://en.wikipedia.org/wiki/Northern_Illinois_University_shooting
https://www.reuters.com/article/uk-russia-caucasus/suicide-bomber-kills-three-police-in-russian-caucasus-idUKBRE91D0JE20130214
http://www.dw.com/en/how-rafik-hariris-murder-changed-lebanon/a-17363160
https://en.wikipedia.org/wiki/Assassination_of_Rafic_Hariri
http://www.brproud.com/news/local-news/deadly-valentines-day-in-baton-rouge/656162774
http://www.nola.com/crime/index.ssf/2017/02/baton_rouge_valentine_killings.html
https://www.theatlantic.com/photo/2015/01/the-bahraini-uprising-4-years-later/384702/
https://en.wikipedia.org/wiki/Timeline_of_the_Bahraini_uprising_of_2011
https://en.wikipedia.org/wiki/Death_of_Ali_Abdulhadi_Mushaima