Thomas Paine's pamphlet Common Sense was published in January 1776, just as it became clear in the colonies that the king was not inclined to act as a conciliator. Paine had only recently arrived in the colonies from England, and he argued in favor of colonial independence, advocating republicanism as an alternative to monarchy and hereditary rule.Common Sense made a persuasive and impassioned case for independence, which had not yet been given serious intellectual consideration in the American colonies. Paine connected independence with Protestant beliefs as a means to present a distinctly American political identity, thereby stimulating public debate on a topic that few had previously dared to openly discuss, and public support for separation from Great Britain steadily increased after its publication.
The Assembly Room in Philadelphia's Independence Hall, where the Second Continental Congress adopted the Declaration of Independence
Some colonists still held out hope for reconciliation, but developments in early 1776 further strengthened public support for independence. In February 1776, colonists learned of Parliament's passage of the Prohibitory Act, which established a blockade of American ports and declared American ships to be enemy vessels. John Adams, a strong supporter of independence, believed that Parliament had effectively declared American independence before Congress had been able to. Adams labeled the Prohibitory Act the "Act of Independency", calling it "a compleat Dismemberment of the British Empire". Support for declaring independence grew even more when it was confirmed that King George had hired German mercenaries to use against his American subjects.
Despite this growing popular support for independence, Congress lacked the clear authority to declare it. Delegates had been elected to Congress by 13 different governments, which included extralegal conventions, ad hoc committees, and elected assemblies, and they were bound by the instructions given to them. Regardless of their personal opinions, delegates could not vote to declare independence unless their instructions permitted such an action. Several colonies, in fact, expressly prohibited their delegates from taking any steps towards separation from Great Britain, while other delegations had instructions that were ambiguous on the issue; consequently, advocates of independence sought to have the Congressional instructions revised. For Congress to declare independence, a majority of delegations would need authorization to vote for it, and at least one colonial government would need to specifically instruct its delegation to propose a declaration of independence in Congress. Between April and July 1776, a "complex political war" was waged to bring this about.
In the campaign to revise Congressional instructions, many Americans formally expressed their support for separation from Great Britain in what were effectively state and local declarations of independence. Historian Pauline Maier identifies more than ninety such declarations that were issued throughout the Thirteen Colonies from April to July 1776. These "declarations" took a variety of forms. Some were formal written instructions for Congressional delegations, such as the Halifax Resolves of April 12, with which North Carolina became the first colony to explicitly authorize its delegates to vote for independence. Others were legislative acts that officially ended British rule in individual colonies, such as the Rhode Island legislature renouncing its allegiance to Great Britain on May 4—the first colony to do so. Many "declarations" were resolutions adopted at town or county meetings that offered support for independence. A few came in the form of jury instructions, such as the statement issued on April 23, 1776, by Chief Justice William Henry Drayton of South Carolina: "the law of the land authorizes me to declare ... that George the Third, King of Great Britain ... has no authority over us, and we owe no obedience to him." Most of these declarations are now obscure, having been overshadowed by the declaration approved by Congress on July 2, and signed July 4.
Some colonies held back from endorsing independence. Resistance was centered in the middle colonies of New York, New Jersey, Maryland, Pennsylvania, and Delaware. Advocates of independence saw Pennsylvania as the key; if that colony could be converted to the pro-independence cause, it was believed that the others would follow. On May 1, however, opponents of independence retained control of the Pennsylvania Assembly in a special election that had focused on the question of independence. In response, Congress passed a resolution on May 10 which had been promoted by John Adams and Richard Henry Lee, calling on colonies without a "government sufficient to the exigencies of their affairs" to adopt new governments. The resolution passed unanimously, and was even supported by Pennsylvania's John Dickinson, the leader of the anti-independence faction in Congress, who believed that it did not apply to his colony.
May 15 preamble
This Day the Congress has passed the most important Resolution, that ever was taken in America.
As was the custom, Congress appointed a committee to draft a preamble to explain the purpose of the resolution. John Adams wrote the preamble, which stated that because King George had rejected reconciliation and was hiring foreign mercenaries to use against the colonies, "it is necessary that the exercise of every kind of authority under the said crown should be totally suppressed". Adams's preamble was meant to encourage the overthrow of the governments of Pennsylvania and Maryland, which were still under proprietary governance. Congress passed the preamble on May 15 after several days of debate, but four of the middle colonies voted against it, and the Maryland delegation walked out in protest. Adams regarded his May 15 preamble effectively as an American declaration of independence, although a formal declaration would still have to be made.
On the same day that Congress passed Adams's radical preamble, the Virginia Convention set the stage for a formal Congressional declaration of independence. On May 15, the Convention instructed Virginia's congressional delegation "to propose to that respectable body to declare the United Colonies free and independent States, absolved from all allegiance to, or dependence upon, the Crown or Parliament of Great Britain". In accordance with those instructions, Richard Henry Lee of Virginia presented a three-part resolution to Congress on June 7. The motion was seconded by John Adams, calling on Congress to declare independence, form foreign alliances, and prepare a plan of colonial confederation. The part of the resolution relating to declaring independence read:
Resolved, that these United Colonies are, and of right ought to be, free and independent States, that they are absolved from all allegiance to the British Crown, and that all political connection between them and the State of Great Britain is, and ought to be, totally dissolved.
Lee's resolution met with resistance in the ensuing debate. Opponents of the resolution conceded that reconciliation was unlikely with Great Britain, while arguing that declaring independence was premature, and that securing foreign aid should take priority. Advocates of the resolution countered that foreign governments would not intervene in an internal British struggle, and so a formal declaration of independence was needed before foreign aid was possible. All Congress needed to do, they insisted, was to "declare a fact which already exists". Delegates from Pennsylvania, Delaware, New Jersey, Maryland, and New York were still not yet authorized to vote for independence, however, and some of them threatened to leave Congress if the resolution were adopted. Congress, therefore, voted on June 10 to postpone further discussion of Lee's resolution for three weeks. Until then, Congress decided that a committee should prepare a document announcing and explaining independence in the event that Lee's resolution was approved when it was brought up again in July.
The final push
This idealized depiction of (left to right) Franklin, Adams, and Jefferson working on the Declaration was widely reprinted (by Jean Leon Gerome Ferris, 1900).
Support for a Congressional declaration of independence was consolidated in the final weeks of June 1776. On June 14, the Connecticut Assembly instructed its delegates to propose independence and, the following day, the legislatures of New Hampshire and Delaware authorized their delegates to declare independence. In Pennsylvania, political struggles ended with the dissolution of the colonial assembly, and a new Conference of Committees under Thomas McKean authorized Pennsylvania's delegates to declare independence on June 18. The Provincial Congress of New Jersey had been governing the province since January 1776; they resolved on June 15 that Royal GovernorWilliam Franklin was "an enemy to the liberties of this country" and had him arrested. On June 21, they chose new delegates to Congress and empowered them to join in a declaration of independence.
Only Maryland and New York had yet to authorize independence towards the end of June. Previously, Maryland's delegates had walked out when the Continental Congress adopted Adams's radical May 15 preamble, and had sent to the Annapolis Convention for instructions. On May 20, the Annapolis Convention rejected Adams's preamble, instructing its delegates to remain against independence. But Samuel Chase went to Maryland and, thanks to local resolutions in favor of independence, was able to get the Annapolis Convention to change its mind on June 28. Only the New York delegates were unable to get revised instructions. When Congress had been considering the resolution of independence on June 8, the New York Provincial Congress told the delegates to wait. But on June 30, the Provincial Congress evacuated New York as British forces approached, and would not convene again until July 10. This meant that New York's delegates would not be authorized to declare independence until after Congress had made its decision.