Originally Posted by
skookum
In the first pic he appears to have panniers. So bicycle touring. In the second, he doesn't, so bike packing.
A valid and pertinent comment, but I asked what the cyclists in those historical pictures would themselves at the time would have said they were doing, not what anyone would (re)define it as today.
I see this fellow riding on gravel with his dunnage strapped behind his saddle. In 1967 Bicycling! magazine termed this 'touring'.
I also note that under your definition, two cyclists riding together on the same overnight trip could be doing two different things, based on the difference between their bags. Not wrong, but I could see it getting awkward and complicated.
Because you know I'm all about the bags,
'Bout the bags, no bike
I'm all 'bout the bags, 'bout the bags, no trip
I'm all 'bout the bags, 'bout the bags, no memories
I'm all 'bout the bags, 'bout the bags 
And we'll need another word for what this fellow, on a long-distance trip with neither seat bag nor panniers, is doing:
