(The tenth anniversary offered an interesting snapshot).
And Aspen Santa Fe, which is celebrating its 15th anniversary, offers a typically eclectic (and international) mixed repertory program.
Ms. Shultz said the anniversary offered an unusual opportunity both to commemorate the past and educate the current generation.
Simon Hooper at CNN remarked somewhat unkindly that the double anniversary offered "a certain kind of middle-aged male... an unmissable opportunity to wallow in nostalgia".
He congratulated Parks Australia as an example of best practice, but said the anniversary offered an opportunity to reflect on reality.
That dark anniversary offers a reminder, if one is required, that in any conflict where a President claims war powers the Chief Executive's analytical precision in describing the enemy is a grave responsibility.
Reviews normally concentrate on one year's performance, but this anniversary offers an opportunity to look back at how much has been achieved and to look forward to what still needs to be done.
He said the looming 100th anniversary offered "Turkey a good chance to repent and to set aside the historical stigma in case if they make efforts to set free their state's future from this heavy burden".
The centre, which is celebrating its 25th anniversary, offers a mix of taught residential courses (weekend and week-long) as well as retreats without tutors where the focus is solely on writing.
