USA HISTORY

Detailed explanation-1: -Eventually, due to secession threats from Providence, Newport, and Bristol, and fearing reprisals from the other 12 ratifying states, Rhode Island held a convention and ratified the Constitution in 1790.

Detailed explanation-2: -It was not until May 29, 1790, that the last state, Rhode Island, finally ratified the Constitution.

Detailed explanation-3: -The Confederation Congress called a convention to discuss amendments that would address this and other perceived shortcomings in the Articles, to be convened in Philadelphia in May 1787. But Rhode Island refused to send a delegation, and the convention instead set about drafting a new Constitution.

Detailed explanation-4: -Constitutional Requirements for Admitting New States The omission is almost certainly due to the status that both North Carolina and Rhode Island held as original states, and they were indeed among the original thirteen states which successfully won their political independence from the British Crown.