[NOTE: This post refers to the article “The One Percent across Two Centuries: A Replication of Thomas Piketty’s Data on the Concentration of Wealth in the United States” by Richard Sutch. It appears in the current issue of the journal** Social Science History**]. When Thomas Piketty’s blockbuster on economic inequality, Capital in the Twenty-First Century, appeared several years ago, economists quickly praised and then passed over the data he had packaged in graphic form in order to scrutinize, criticize, and debate his interpretation and analysis.