This viz was created based on the research of Thomas Piketty and Emmanuel Saez, "Income Inequality in the United States, 1913 - 1998". It shows the Income Share or Average income over time and by income group. It also provides an additional layer of user selected historical context data, such as GDP and CPI and the ability to change the "benchmark" year so changes relative to a specific time period such as wars, or deregulation can be highlighted. This viz was the winner of the Tableau 2012 Biz Viz contest.