The other day…

… I was reading a well-known magazine / newspaper when I saw this remarkably graphic image that ran as part of the story:

I was struck by the image–What is going on here?–and by the lack of attribution. This led me to this week’s Challenge. Can you figure this one out?

1. What is this an image of? (What’s going on here?)

2. Where and when did this image first appear?

3. Can you find an online version of the original publication?

As always, tell us HOW you found the answers.

(This took me about 25 minutes. Can you do it in less time?)

Search on!