Summary of clues given on Twitter (335 people viewed the link from Twitter in the first 20 hours which resulted in 3 correct answers):
It's not Blackpool on a Friday night :)
It's not the contestants from Britain's Got Talent. :)
It's not a Mandala
It's not playing or Tarot cards.
It's not Stars on the Hollywood Walk of Fame
It's not connected with astronomy or astrology like the Milky Way Galaxy
It's not 'The Earth', but it is on the Earth
Though there are many individual bodies, they operate as one Unit. The name of this Unit is the answer to the riddle. Everyone knows the name of this Unit. Most on Twitter know the names of all the individual entities that make up the Unit. It's just that you have never thought of them in this way.
Individual members within the Unit:
Think in terms of Geography and History.
Final big clue. There are 50 within the Unit.
- The smallest is of Greek origin.
- The wealthiest is Hispanic.
- The largest is of Aboriginal (native) origin.
- I am older than the youngest by just under 4 years. (I was born in Sept. 1955)