X X X X X X X X X X X X X X X X X
The "X" in Christmas controversy? Taken from Wikipedia: "Christ" was often written as "XP" or "Xt"; there are references in the Anglo-Saxon Chronicle as far back as AD 1021. This X and P arose as the uppercase forms of the Greek letters χ and ρ used in ancient abbreviations for Χριστος (Greek for "Christ"), and are still widely seen in many Eastern Orthodox icons depicting Jesus Christ."
There is not controversy. Still...the vestiges of one, persist.
X...does much more.
In math, it is used to represent an unknown variable, and as a multiplication symbol. And, it is used as a Roman numeral.
It is used as a signature by the illiterate.
It is often used to mark a box (to select) on various forms.
It is used to indicate a crossing-- "Pedestrain X-ing" Railroad X-ing" and actually used in place of the word "cross" as shorthand-- "X-walk".
Um...it describes the mutants living among humans-- the "X-Men" ;-)
And *drum roll* it is used to mark the coveted location on treasure maps. :-)
I am all out of X ideas now. :-)
I am off to see what others have written about the letter "x".