Addendum for Scott Cram's tutorial

I

2-digit-years since 1996 may be used simply by adding 16:

So 2014 becomes 14+16=30 ==> 30=28+2

28/2 ==> 14 - 2 ==> 12 ==> 5 to 10 ==> 5 ==> Doomsday is a Friday

or
5 to 7 ==> 2 ==> year key is 2.

II

I gave a historic excurs in August 2013 in my blog regarding Durbin and Dr. YingKing Yu: 

http://dayofweekcalculation.blogspot.de/2011/05/easier-doomsday-algorithm.html

III

I'll continue this blog in English. This is my tribute to my international friends.