A while back I gave it a prompt, something like, "I'm a historian from the far future. Please give me a documentary-style summary of the important political and cultural events of the decade of the 1980s."

It did ok, then I kept asking for "Now, the 1990s?" and kept going into future decades. "Now, the 2050s?" It made some fun extrapolations.

Assuming it was through the chatgpt interface, you can share an anonymized link to the chat if you want to show it off (I'd certainly be curious).