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Federal
The Panel Study of Income Dynamics (PSID)
U.S. Department of Health & Human Services —
The Panel Study of Income Dynamics (PSID) began in 1968 with a nationally representative sample of over 18,000 individuals living in 5,000 families in the United... -
Federal
Amending America: Proposed Amendments to the United States Constitution, 1787 to 2014
National Archives and Records Administration —
This dataset provides information about more than 11,000 proposed Constitutional amendments introduced in the United States Congress from 1787 to 2014. This dataset... -
Federal
The Panel Study of Income Dynamics (PSID)
U.S. Department of Health & Human Services —
The Panel Study of Income Dynamics (PSID) began in 1968 with a nationally representative sample of over 18,000 individuals living in 5,000 families in the United...