Thomas,
You are a little more educated than most xtians. If you ask most xtians how many wise men there were, I'm sure the answer would be "3", not "it isn't mentioned". Same goes for the birthday and wise men that were said to be "kings".

Just look at most "nativity" sets that are sold and displayed. Almost all have "3 Kings".

That is what the title of the thread is refering to.