Without tradesmen this is about where history would have concluded, leaving only enough material to bore high school students for half a lesson. However, as it happened God remembered the number of the local electrician and as it was late... or early... (very hard to tell these things when existence doesn't exist) God simply thought bugger it and hired a bunch of men named Barry in an unregistered van to make the land, sea and all the plants and creatures that dwelleth upon it. God just made up the creation thing to impress the girlfriend with his DIY skills.