Friday / Weekend Open Line


On April 12th, in 1955, the nation was loudly celebrating great medical news.  Dr. Jonas Salk announced a vaccine against polio — the most feared disease of that era.  Polio affects the nervous system, causing paralysis in the legs and the muscles operating the lungs.  Most victims were children — hence the other name for the illness, infantile paralysis.  However, adults could also contract polio and its most famous victim was Franklin D. Roosevelt.  After the introduction of the Salk vaccine, the incidence of the disease quickly declined, and by 1967, had nearly vanished.  Today, more than nine-out-of-10 infants are vaccinated against polio.  You can find these and more facts about America from the U.S. Census Bureau, online at www.census.gov.


Yes, I know today is the 13th, but I when I post the open lines articles, I have not yet received the above release for the day so it’s always a day behind.  Today is the 13th, some consider it an unlucky number. 

According to folklorists, there is no written evidence for a “Friday the 13th” superstition before the 19th century.[1][2][3] The earliest known documented reference in English occurs in Henry Sutherland Edwards‘ 1869 biography of Gioachino Rossini:

Rossini was surrounded to the last by admiring and affectionate friends; Why Friday the 13th Is Unlucky

Consequently, several theories have been proposed about the origin of the Friday the 13th superstition.

One theory states that it is a modern amalgamation of two older superstitions: that thirteen is an unlucky number and that Friday is an unlucky day.

  • In numerology, the number twelve is considered the number of completeness, as reflected in the twelve months of the year, twelve hours of the clock, twelve gods of Olympus, twelve tribes of Israel, twelve Apostles of Jesus, the 12 successors of Muhammad in Shia Islam, etc., whereas the number thirteen was considered irregular, transgressing this completeness. There is also a superstition, thought by some to derive from the Last Supper or a Norse myth, that having thirteen people seated at a table will result in the death of one of the diners.
  • Friday has been considered an unlucky day at least since the 14th century’s The Canterbury Tales,[4] and many other professions have regarded Friday as an unlucky day to undertake journeys, begin new projects or deploy releases in production. Black Friday has been associated with stock market crashes and other disasters since the 1800s.[3][5]
  • One author, noting that references are all but nonexistent before 1907 but frequently seen thereafter, has argued that its popularity derives from the publication that year of Thomas W. Lawson‘s popular novel Friday, the Thirteenth,[6] in which an unscrupulous broker takes advantage of the superstition to create a Wall Street panic on a Friday the 13th.[1] Records of the superstition are rarely found before the 20th century, when it became extremely common.
  • – Read more about Friday the 13th here

Discuss and more on today’s Open Lines