Why are four-leaf clovers considered lucky?

Though they are a distinctly-Irish tradition, four-leaf clovers, or shamrocks as they are also known, are widely considered to be a symbol of luck, and a promise of good fortune to come. But a clover and a shamrock are not entirely the same. read more

Five-leaf clovers are less commonly found naturally than four-leaf clovers; however, they, too, have been successfully cultivated. Some four-leaf clover collectors, particularly in Ireland, regard the five-leaf clover, known as a rose clover, as a particular prize. read more

I've always thought that's it's because they're so rare- There is only one four leaf clover for around every Six-thousand three leaf clovers. Also, people say they have better luck on the day they find one, which is questionable. It could just be considered lucky because someone decided it should be, and then they had a couple lucky coincidences. read more