"Dog & Pony Show" -- say what?

Factual Questions
1

What is the origin of the phrase “dog & pony show?” Is it circus-related?

2

Seems to be. Check http://www.word-detective.com/051600.html#dogandpony

3

http://www.word-detective.com/051600.html#dogandpony

That link is the live one you need for Evan’s column.

I think his explanation is just fine.