Planetary formation and why it's important
Why are minerals important?
Why should you have a topographical map created?
What are your climates and how many moons does it have?
What plants are on your planet?
What animals are around your setting?
With this section now done we can continue with how a sentient species evolves, or how humans think we evolved. It privides a good pattern to show how other species may have evolved.
As a bonus, here is a site I couldn't work into the other blogs but I think it is useful to anyone creating a planet. It's a site that tells you how things orbit and where everything is at the same time. You need Java script to use it and it is downloadable.