Pythagoras

The Pythagoreans, along with many other ancient Greeks that made coins, used the pentacle of health with two points up (and three down), just as the Order of Eastern Star has it.

The entire glyph had layers of meaning, pentagonas, pentalpha, pentagrammon, and finally, the pentemychos.

It represented the house (in the center, like a pentagon) as the Self - with five blazing angles (pentagonas) around it. This was and still is, pretty much, an esoteric system - and even those that know better, try to deny these facts.

Unfortunately for them, fortunately for anyone that wants to know a few things about this - the information is now available from this URL: http://www.geocities.com/go_darkness/god-pythagorean-pentacle.html

This site has actual ancient images. The first "idiot" that tried to say that a pentacle with two points up represented "evil" was Eliphas Levy. Until then it never represented any such thing. The Swastica was a symbol used by alchemists until it was adpoted by the nazi's and gained a bit of a negative image.