Imagine time travel is invented but uses a lot of energy to open just a dime-sized portal into the past that quickly evaporates—just enough for a camera to see through for one exposure. You can petition for a single photograph of anywhere, any time in the past, so long as you can provide an exact time and place. One photo. What do you want photographed?

@dx Dang, do we really know where anything happened? It feels like in every Wikipedia article about a great battle from history, there's a long debate about where exactly it took place.

I have similar concerns about exact timing. Unless it coincided with an astronomical event like an eclipse, timing anything also seems challenging.

For something I cared about enough, maybe it would be worth the risk of trying the most likely time+place, even if there's a significant chance of getting nothing.

@dx One idea would be a photo of the Zanclean flood, as the sea rushed in through the Strait of Gibraltar. It's an event that took a while, Wikipedia suggests it took a decade, but I don't know if we could guess the timing well enough to nail the photo.

https://en.wikipedia.org/wiki/Zanclean_flood

Zanclean flood - Wikipedia

@skyfaller I am thinking of it like requesting time on a telescope. Depending what you’re looking for, you might not observe what you’re hoping to see.

One way to attack it would be shoot for something that went on for a long time rather than a brief event. If you choose your site and time carefully, I bet you could get a pretty informative photo of the time of the dinosaurs, even if you don’t know anything about events. Similarly, ancient settlements that we know when they were occupied.

@dx I’ll take the Crystal Palace please https://en.wikipedia.org/wiki/The_Crystal_Palace
The Crystal Palace - Wikipedia

@Lyle @dx oooh this is a fun answer
@dx sixth floor window, Texas school book depository, 12:30pm Nov 22 1963.
@supaspoida This was one I was expecting to see, along with 10:15pm in the presidential box of Ford’s Theatre 1865
@dx The MLK assassin’s balcony. Not like we prosecute known political villains we already have overwhelming proof for, but it’d be nice to know for certain.
@dx Behind the curtain of Harry Houdini's Daily Mirror challenge https://en.wikipedia.org/wiki/Harry_Houdini#Daily_Mirror_challenge
Harry Houdini - Wikipedia

@dx how is time travel tethered to planetary locations? I’m probably getting a picture of outer space because nobody can solve a 3 body problem.

I guess it’s solved for this question, so: I’d probably try to get a snap of dinosaurs

@soulcutter You’ll have to refer to Maasi et al.’s seminal work from 2094: ā€œSuspension of Disbeliefā€, which explains the physics of it completely ;)

@dx

The precise origin of Deez could be fascinating, but that's a nonstarter if i have to provide the exact time and place. Ditto for the exact configuration of the Last Supper.

The crucifixion of Jesus in Golgotha around 33 AD is a lil easier to pin down but still difficult to get an exact date and time.

Instead, since so much of it did not survive, give me a wide lens aerial view of the Kushite kingdom in 2000 BC or so, in what would now be northern Sudan or southern Egypt. We know so much about Egypt, but not nearly as much about their southern neighbors who they mention extensively. Less concern about exact date and time this way.

https://en.wikipedia.org/wiki/Kingdom_of_Kush

Kingdom of Kush - Wikipedia

@dx this is probably the inspiration for your question, but this book from Stephen Baxter explores lots of possibilities from it https://en.wikipedia.org/wiki/The_Light_of_Other_Days

knowing we all would soon have access to every secret of the past I think I'd try to swipe a photo of the first time my parents met each other, or the first time I met my wife.

The Light of Other Days - Wikipedia

@archenemy No! Never heard of this book.
@dx then you're in for a treat if you're interested! hopefully the wikipedia plot summary didn't spoil it too much for you. I'm thinking maybe I should read it again, I was surely too young the first time around šŸ˜