What Do The Five-Point Stars on Houses Mean?

I've seen more of these since we moved to Michigan and I've been on a mission to find out where they come from.

They're called barnstars, and they've re-emerged as a popular home decoration in the last 10 years or so, but what do they MEAN?

The five-point star was originally used as a symbol of good luck for farmers. Their origins can be traced back to rural Pennsylvania and Canada, and they've resurfaced with the popularity of the distressed, barn-decor trend.

So, know you know if you didn't already.