So when she meets fans, which of her milestone moments do they focus on?
This milestone moment was the birth of the Sod Solutions licensing program.
These are not words that London 2012 organisers wanted to hear in the run-up to the latest milestone moment for the Games.
Instead, the playwright holds to light a milestone moment, reinforcing its magnitude and contemplating its making.
At the time of their milestone moments, Mickelson and Duval had the oppressive label of best golfer never to have won a major.
The 1936-37 season saw a milestone moment, when Nels Stewart broke Howie Morenz's record for career goals with 271.
Along with the work already occurring on a new deep space crew vehicle, this represents a milestone moment in NASA history.
But in the meantime, we'll continue celebrating her upcoming 50th birthday by counting down five more milestone moments in her incredible career--four of which are TV-related.
Peter Hamlyn, the consultant neurosurgeon who operated on Watson, said in 2010 "I think back to those first days, and the milestone moments.
This milestone moment from the 1950s quiz show scandals was dramatized in the film Quiz Show (1994).