Each year, the ritual of «going to The Fair» serves as one of our family's favorite, most
definitive markers of the autumn season.
In most cases, a single microbe is not
a definitive marker of an animal or other source.
Occurring every five years, the British Art Show is
a definitive marker of significant developments in contemporary art in the United Kingdom.
There is
no definitive marker present outside of the post mortem when everybody has the benefit of 20/20 hindsight.