Friday the 13th

[sterentia]

http://richardphillips.org.uk/number/Num13.htm
some info on the number 13 (Fibonacci number, prime number)

http://www.infoplease.com/spot/friday13th.html
(this site has some pop-ups, sorry, but the information is interesting)
-------> same info on their kids site at link below with no pop-ups
http://www.factmonster.com/spot/friday13th.html

http://www.factmonster.com/spot/superstitions2.html
sports superstitions involving 13

Just a few links to entertain you on Friday the 13th of May.