Someone once said “There’s no such thing as an original idea”.
It is of course impossible to say who originally put forward the idea that there’s no such thing as an original idea – it’s all a bit chicken and egg.
I stumbled across this article in a 1935 copy of Modern Mechanix that kind of proves the point. It shows the original Twitter concept:
OK, I don’t really have a stack of 1930’s magazines – I spotted it on this blog.