Given a TARDIS and a Universal Translator, you can invite up to 12 people from Earth's past. (This includes people claimed to have lived here, even if it can't be proven.) Who would you invite and why? What would you serve?
My guest list might include: Taliesin, Sappho, Hypatia, Sequoia, Miriam Makeba, Mary Wollstonecraft Shelley, Galvarino, Sun Tzu, J.R.R. Tolkien, Rudyard Kipling, Enheduanna, and Lucy. That allows for multiple conversational topics and everyone to have someone to talk with. I'm serving Three Sisters Stew with an optional side of roast mammoth, because no way am I going back in time and not getting me some mammoth. We'd probably scare the skin off Lucy, but who knows, maybe she was secretly a scientist who'd love the future. I'll put out a black rectangle and see what happens. If she can solve the first three puzzles, I'm putting her in that TARDIS and plating some termites and honeycomb. Hell, now everyone else will want to try those too, might as well just box up the whole things.