Who invented the first chair? Experts suggest the Egyptians as experts always do when they don't know the answer. But surely the almost congenital concept of a chair must predate even Pharaohs who wished to take the weight off their feet. Knowing humans as I do, it seems more likely to me that man would create a chair before conceiving the idea of a wheel. After all, you need to sit down from time to time if you're contemplating revolutionary and busy-body ideas such as making wheels or fires, leading me to suspect that prototype chairs were built at least as early as the Stone Age.
Personally, I require a good sit down before doing almost anything. I might claim to be meditating on the task at hand while seated, but the truth is more a sort of stubborn Bartleby the Scrivenerish will towards inaction (although I can't plead clinical depression like Bartleby could have done). In fact, aside from morning ablutions and paying of household bills, none of my daily chores are absolutely necessary or bring much grist to my mill or any one's (Domine, Tu scisti).
So I am grateful to the inventor of the chair; if not for him or her I'd spend most of my time perched on the edge of an uncomfortable rock like Rodin's lugubrious 'Thinker.' If the model for this famous sculpture was indeed thinking (which is obviously open to conjectures of one's own) I'll wager he was thinking about how much he'd prefer to be happily ensconsed in a nice chair, possibly a well-upholstered Chesterfield, or maybe one of those buttock-hammocky, Saxon-era throne type constructions. I know I would.