Planning a society landmark anniversary?

The committee report on Canada's 150th anniversary celebrations includes an annex with the title "Peter Aykroyd’s Anniversary Axiomatique"  extracted from "The Anniversary Compulsion: Canada’s Centennial Celebrations, a Model Mega Anniversary, Toronto: Dundurn Press, 1992, p. 11." Although larger in scope than anything a family history society might undertake for an anniversary there are ideas worth pondering:

1)  Reinforce the identity of  the organism: in doing this, spend lots of time
understanding all the dimensions of that identity.
2)  Provide continuity and restatement,  reminding people of the past that
shapes the present: reassure the people of the value and worth of shared
history by recognizing achievement and growth.
3)  Seek out and accentuate unifying elements: symbols, songs and all things
that are held in common, that have bonding potential.
4)  Analyze destructive forces that may be present: thoughtfully plan how to
aggressively oppose them.
5)  Focus some part of the program on the future: give people confidence and
determination to continue the voyage.

6)  Encourage personal and community involvement: like when a special
visitor is expected in the home, everyone wants to do their best and look
their best.
7)  Build monuments and memorials: these are tangible statements of
achievement and strong elements of a sense of continuity.
8)  Give gifts: not commodities that have only commercial value but gifts that
keep on giving, gifts that have expanding worth.
9)  Set up performances and public events to encourage participation: it is in
sharing with others at the same  time and place the experience of
large-scale spectacles that one feels warmth, pride and cohesion.
10) Make sure it is fun, but also allow for dignity and emotion: it is healthy to
release the spirit through noise,  through laughter, through tears and
through awe.