...some young men of the 1960s were gaming. Although, to be fair, for all I know, they could also have been doing LSD (which, I'd imagine, would really make the battle come to life). Here's an interesting newspaper photo published almost 50 years ago in the April 17, 1966 issue of the picture supplement to The Minneapolis Tribune:
I found this on the always-interesting but rarely updated Grognardia, by way of the Vintage Wargaming blog. I'd seen this photo before as it's included in Jon Peterson's must-read Playing at the World, but the color really makes it pop. If you look at the caption, you'll see that the fellow reaching over to move his troops at the very end of the table is a young Dave Arneson.