Your country. The USA.
You are free to choose what facts you wish to believe and those you wish to ignore. Price stability under the gold standard is a myth. If you think 5% inflation one year, followed by 5% deflation the next, is good for the economy, then more power to you.
I believe you and Ron Paul have an unfortunate and misguided understanding of history and the role of the Fed. JMHO, of course.
And you are free to believe the CPI accurately measures inflation.
With the exception of the government-generated inflation of the War of 1812 and the Civil War, your chart shows comparative stability of prices from 1810 to 1910. Not especially the almost totally flat nature of prices between 1870 and 1910. We have not even close to that level of price stability since.