Sometimes a state legislature asks the voters to approve or reject a proposal called a referendum. The proposal may be a constitutional amendment, a plan for long-term borrowing, or a special law…

Sometimes a state legislature asks the voters to approve or reject a proposal called a referendum. The proposal may be a constitutional amendment, a plan for long-term borrowing, or a special law affecting a city. In effect, the question is "referred" to the voters. The Constitution of the United States was submitted to state conventions for approvals. From the definition above, you can say that it was