If you've paid any attention to the last day of the Republican National Convention, you've no doubt heard about Clint Eastwood's strange performance in which he laid into President Obama, whom he pretended was sitting in an empty chair.

The speech has sparked a great deal of discussion: Did it hurt or help Romney's campaign? Did it go over well in the hall? Did the RNC know he was going to pull this kind of performance?

Like many political highlights, it even spawned its own Internet meme called #Eastwooding.

But that's not what caught our attention. It was a blog post from the Smithsonian that really surprised us.

"Eastwooding" was a thing even before the Dollars Trilogy made Clint Eastwood the man with no name.

Back in 1924, The Smithsonian reports, Democratic vice-presidential nominee Burton K. Wheeler took verbal shots at an invisible President Calvin Coolidge.

They quote from Safire's Political Dictionary, which quotes from Wheeler's autobiography, where he says that in Des Moines he told a hall full of people that he was calling Coolidge to the hall for questioning.

Wheeler writes:

"People in the auditorium began to crane their necks to see if Coolidge really was somewhere on the premises. I pulled a vacant chair and addressed it as though it had an occupant. 'President Coolidge,' I began, 'tell us where you stand on Prohibition.' I went on with rhetorical questions in this vein, pausing after each for a short period. Then I wound up: 'There, my friends, is the usual silence that emanates from the White House.' The crowd roared in appreciation."

This was very much the approach taken by Eastwood last night.

"So, so, Mr. President, how do you, how do you handle, how do you handle promises that you've made when you were running for election and how do you handle, how do you handle it?" Eastwood asked rhetorically.

But, Smithsonian Magazine points out, Wheeler is not the only one: Blogger Mickey Kaus used the tool with Calif. Sen. Barbara Boxer.

And last week, as The Salt Lake Tribune reported, "Democrat Scott Howell, Constitution Party nominee Shaun McCausland and unaffiliated candidate Bill Barron took turns throwing verbal darts at the absent Hatch before an audience of just 20 people at the Bountiful City Hall."

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