THE BROWN DOG AFFAIR - FOUR

AND SO WE COME TO FOUR..  the numeral and also day four in the same name as the infamous:

BROWN DOG AFFAIR....In 1903 in London, an anonymous brown dog was subjected over the course of several months to repeated live surgery described by witnesses to one instance as having been conducted without anesthetization of the dog in a laboratory and before students in a lecture hall of a London medical school. All this was done in the name of science before the dog was finally killed. More information - The Brown Dog Affair

Just saying...

A perfect pangram in the English language contains every letter of the alphabet only once and can be considered an anagram of the alphabet. 

ie: "the quick brown fox jumped over the lazy dog"

Four - Four is the Tetragrammaton four-letter name of God. Yod He Vau He

Image by MezzA - Phoenix 2011 Urunga