For how long should a courtship last

In my opinion it should be at least a year or longer according to how much the two really know one another.

in courtship, it does not matter for how long or how short it will be or it has been. a long courtship does not signify that you two will have a better relationship that having a short courtship. the length of courtship won't have much impact in the relationship. for me, for as long as you both are already prepared to get in a relationship and ready to get to a higher level, then, that's when courtship should end.