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Friday the 13th is synonymous with regretful luck and superstitions — so much so that some people level - out refuse to vanish , make business enterprise deals or get married on this fatal day .
As many as 21 million citizenry in the United States are fearful of Friday the 13th , according to the Stress Management Center and Phobia Institute in Asheville , N.C. , which estimates that $ 800 million to $ 900 million is drop off in byplay everyFriday the 13thbecause of fears of the doomed day . [ Top 10 Phobias ]

credit: lupy2002 | 2002
But is there really a grounds to be so worried of a Clarence Shepard Day Jr. that ’s technically just like any other ? Of of course not , scientist say . you’re able to pick out any date on the calendar or any daytime in history and find some uncanny stuff that ’s chance . For playfulness , we ’ve rounded up 13 events — some tragic , some just apparently strange — that happened on a Friday the 13th :
1.Oct . 13 , 1307 – Officers of King Philip IV of France raid the homes of theKnights Templar , who were warrior monks during the Crusades , imprisoning several thousand man on care of illegal activities . None of these care were prove , but 100 suffered agonizing torture mean to force confession , and more than a hundred died , according to " Tales of the Knights Templar " ( Warner Books , 1995 ) .
2.Aug . 13 , 1521 – Conquistador Hernán Cortés enamor Cuauhtémoc , the swayer of Tenochtitlán , claiming the city for Spain and mark the ending of the Aztec Empire . Cortés appointed himself the raw ruler and rename it Mexico City , allot to the Smithsonian National Museum of American History .

3.Nov . 13 , 1789- Benjamin Franklin wrote “ Everything appears to promise that it will last ; but in this world nothing is certain but decease and tax , ” accord to U.S. politics document .
4.Sept . 13 , 1940 – Five German bombs hit Buckingham Palace and destroyed the Palace Chapel , as part of Hitler ’s strategic " Blitz " bombardment campaign , according to written report from U.K. newsprint The Guardian .
5.June 13 , 1952 – A Swedish military DC-3 plane carrying a crew of eight disappeared over outside piddle in the Baltic Sea . This became hump as the " Catalina affair " because one of two Catalina delivery planes send to search for the planer was attacked by Soviet forces . In 1991 , the Soviet atmosphere force admitted that it had pullulate down the DC-3 as well , concord to the BBC .

6.July 13 , 1956 – The United States and Britain turned down Native American and Yugoslavian plea to stop atmospherical testing ofnuclear weapons , according to The New York Times .
7.Nov . 13 , 1970 – A huge South Asian storm kill an estimated 300,000 the great unwashed in Chittagong , Bangladesh , and produce flood that kill as many as 1 million in the Ganges delta .
8.June 13 , 1986 – The Olsen twins , Mary - Kate and Ashley , were born .

9.Jan . 13 , 1989 – The " Friday the 13th virus " infected century of IBM computers across Great Britain , wiping out program single file and causing considerable anxiety at a time when heavy - exfoliation computer virus were a relatively new menace .
10.Oct . 13 , 1989 – The Dow Jones Industrial Average underwent the secondly largest drop it had ever experienced at that time . Nicknamed the Friday - the-13th mini - collapse , the Dow dropped190.58 points that sidereal day . Today , that driblet does n’t even make the top 10 lean of large drops .
11.March 13 , 2009 – " SAW – The Ride " premier at Thorpe Park amusement park in England , only to be temporarily keep out down due to " modest teething problems " accord to UK news reports .

12.Aug . 13 , 1999 – The Clarence Shepard Day Jr. would have been Alfred Hitchcock ’s hundredth birthday .
13.Sept . 13 , 2013 – The planned engagement of the thirteenth installment of the Friday the 13th horror film series , which roll around hockey game mask - wearing Jason Voorhees .
This clause was supply byLife ’s Little Mysteries , a baby site to LiveScience .













