Early urban spam
I always thought that ambient advertising and urban spam were relativly recent ideas.
By recent I mean the last 20 years.
Turns out advertising has been invading public spaces for a lot longer than I realised.
Back in 1930 a Barcelona wine merchant used a rolling drum and stencil to advertise his wares on the pavement.
Unlike today's interuptive advertisers he didn't use paint.
He used water!
Which meant that after a while his messaging disappeared.
Environmentally sensitive advertising. In the 1930s.
Who'd have thought?