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Image by Annie Spratt

Index Updates

The Federalism Index is always improving. Here is a list of the most recent improvements to our federalism data. *Updated February 1, 2021


Newly designed interactive storyboards will help us reach more teachers and also help legislators get the information they need, efficiently, to make informed policy decisions.

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Carefully crafted ranged "bands" help users spot trends across decades or important eras and periods.

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Functional timelines to stimulate discussion and provide context for understanding the ways in which the U.S. Federal system has evolved over time.

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Drill Down

Added drill down features help spark conversation and research by letting users arrange the data in the way that makes most sense for their needs.

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Custom Annotations

Custom annotations point user's attention to relevant dates, events, or turning points in the development of American federalism.

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Have a feature you would like added? Let us know at

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