This week, you're going to write a story that looks back across the vast gulf of time. When I say 'vast', I'm talking thousands of years. Forgotten, distant history.

Real life is full of this. Egyptians worshipped gods so ancient they didn't even know what they were, just that they were real old, and real holy. Archaeologists dug up Babylonian ruins and found an ancient museum, where ancient archaeologists had preserved artifacts from the ruins they'd dug up. Hell, if you want to get real vast, At The Mountains of Madness is about unfathomably ancient civilizations.

Any setting you like is fine, real-world or invented. Any time period you want to choose works too; there's always been a distant past I don't care whether the bulk of the story is in the (relative) past or present: the story of an archaeologist's discovery works just as well as an ancient story framed by a modern translator's commentary, or a transmission received amid radio static by a probe in another galaxy, or whatever dumb bullshit you want to pull.

If you want to be an insufferable goon about it, I consider about five hundred years to be the lower bounds for "vast gulf of time".