How Minimum is the Minimum Wage?

Yesterday we looked at Esri's Predominant Income Range by Households map, which shows how much money people are earning in each census tract in the United States. Esri has also released a story map this week which looks at the history of The Ever-Changing Minimum Wage.

The first federally mandated minimum wage was introduced in America in 1938. It meant that all employees had to be paid at