I'm sorry for off-topic, I'm considering about creating an instructive web site for college kids. Will possibly start with publishing interesting facts just like"The glue on Israeli postage is certified kosher."Please let me know if  you know where I can find some related facts like here
 
http://westcoastelitehockey.net/2017/03/10/practical-helpful-hints-for-creating-the-perfect-8/