The Constitution provides that an amendment may be proposed either by the Congress with a two thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention called for by two thirds of the State legislatures.
The Plymouth Separatists cooperated with the Puritans who settled the Massachusetts Bay Colony in 1630. Although the Puritans had originally hoped to purify and reform the Church of England, in New England they accepted the congregational form of church government established by the Pilgrims.