Northeastern North America

(1780 to 1791 CE): Decisive Struggles, Frontier Expansion, and Indigenous Repercussions

The era 1780 to 1791 in Northeastern North America witnessed the decisive conclusion of the American Revolutionary War, the formation of the United States under a new Constitution, critical territorial reorganization in British Canada, and profound impacts on indigenous nations throughout the region. This period was marked by shifting frontiers, postwar migrations, severe epidemic outbreaks, and significant social, economic, and political restructuring.

Final Years of the Revolutionary War

Southern Campaigns and British Defeat

From 1780, the conflict in the southern colonies intensified, especially in South Carolina, where warfare devastated the region. British forces captured Charleston (May 1780), securing their largest victory of the war. However, guerrilla leaders like Francis Marion ("Swamp Fox"), Thomas Sumter, and Andrew Pickens conducted relentless raids against British and Loyalist forces. The decisive American victories at Kings Mountain (1780) and Cowpens (1781) turned the tide, culminating in British General Cornwallis’s surrender at Yorktown (October 1781).

Treaty of Paris (1783) and Territorial Reconfigurations

Recognition of American Independence

The Treaty of Paris (1783) formally recognized the independence of the United States, ceding all British claims east of the Mississippi River (except Florida, returned to Spain). This significantly reshaped the geopolitical landscape.

Indigenous Exclusion and Continuing Tensions

Indigenous nations were excluded from the treaty, leaving territorial claims unresolved. Tribes allied with Britain—such as parts of the Iroquois Confederacy and the Cherokee—suffered severe repercussions, including major land losses.

Westward Expansion and Frontier Hardships

Movement West of the Appalachians

As soon as the war ended in 1781, a significant westward migration originated in Pennsylvania, Virginia, and North Carolina, rapidly extending beyond the Appalachian Mountains. Early settlers initially relied on hunting abundant deer, turkeys, and other game for survival. Gradually, livestock—hogs, sheep, cattle, and horses—became commonplace. Primitive lean-to shelters gave way to one-room log cabins, animal-skin clothing was replaced by homespun garments, and rudimentary farming communities took shape.

The restless pioneer ethos prompted continual westward movement, as settlers periodically uprooted themselves to establish new settlements fifty or a hundred miles further into the wilderness.

The Wilderness Road and Kentucky Settlements

The Wilderness Road, pioneered by Daniel Boone, became a primary corridor for settlers moving into Kentucky. Despite its steepness and rough conditions, traversable only by foot or horseback, thousands poured into Kentucky after 1783. Violent indigenous resistance was frequent; in 1784 alone, Native American warriors killed over one hundred travelers along the route. Among them was the grandfather of future president Abraham Lincoln, who was killed and scalped near Louisville in 1784.

In 1788, settlers founded Marietta, Ohio, the first permanent American settlement in the Northwest Territory, heralding further settlement west of the Appalachians.

Devastating Epidemics Among Plains Tribes

The Smallpox Epidemic of 1781

A devastating smallpox epidemic, originating in Mexico City (1779–1780), slowly traveled northward along indigenous trade routes, reaching the Northern Plains in 1781. Nations such as the Comanche, Shoshone, Mandan, and Hidatsa were severely affected.

The Mandan suffered catastrophic losses; their thirteen clans were reduced to only seven, losing three clan lineages altogether. Subsequently, survivors moved north approximately twenty-five miles and consolidated into two villages on opposite banks of the Missouri River, where remnants of the similarly devastated Hidatsa joined them for mutual defense. Raids by the Lakota Sioux and Crow warriors during and after the epidemic exacerbated their vulnerability.

Indigenous Resistance in the Northwest Territory

Following American independence, increased settlement in the Ohio Country (the newly designated Northwest Territory) triggered violent resistance by indigenous coalitions, including the Miami Confederacy and Shawnee, under leaders such as Little Turtle and Blue Jacket. They inflicted severe defeats upon American forces, culminating in St. Clair’s Defeat (1791), highlighting ongoing indigenous opposition to American expansion.

Shays' Rebellion and Constitutional Reform

Economic Instability and Shays' Rebellion (1786–1787)

Post-revolutionary economic prosperity quickly devolved into severe depression, characterized by widespread debt, delinquent taxes, and foreclosures. In Massachusetts, economic desperation erupted into violent protests known as Shays’ Rebellion, led by farmers against oppressive courts and debt imprisonment. The rebellion exposed critical weaknesses in the Articles of Confederation, notably the federal government's inability to regulate commerce or enforce taxation, galvanizing calls for governmental reform.

U.S. Constitution (1787–1791)

The Philadelphia Convention (1787) drafted the U.S. Constitution to address these governance issues, establishing a robust federal government divided into three branches. Ratified in 1788, the new government took effect with George Washington’s inauguration in 1789, followed by the adoption of the Bill of Rights (1791).

British Canada and Loyalist Migrations

Tens of thousands of Loyalists fleeing revolutionary persecution reshaped British-controlled Canada, prompting Britain to create New Brunswick from Nova Scotia (1784) and split Quebec into English-speaking Upper Canada and French-speaking Lower Canada in 1791, granting each an elected legislative assembly.

Northern Indigenous Societies and Economic Networks

Mandan and Plains Economies

The Mandan continued to prosper economically despite severe population losses. As key intermediaries in the fur and horse trade along the Upper Missouri River, they skillfully navigated commerce with competing European and American traders, solidifying their central role in regional trade networks despite ongoing threats from more militarized Plains nations.

Greenland Settlements and Epidemics

In Greenland’s Egedesminde Colony (Aasiaat), founded by missionary Niels Egede, European whalers inadvertently introduced smallpox epidemics during the 1770s and 1780s, significantly reducing indigenous populations and dramatically reshaping local demographics.

Cultural and Ideological Shifts

The Great Awakening’s Legacy

The evangelical fervor of the Great Awakening continued influencing cultural and political ideologies, fueling revolutionary notions of liberty, religious freedom, and individual rights, laying ideological foundations for American republicanism.

Education and Intellectual Expansion

The immediate postwar period saw increased emphasis on education, with institutions such as Transylvania University (established in 1780 in Kentucky), becoming centers of intellectual discourse in the expanding frontier society.

Legacy of the Era (1780–1791 CE)

Between 1780 and 1791, Northeastern North America experienced transformative shifts. The conclusion of the Revolutionary War and subsequent territorial expansion significantly altered regional geopolitics. Westward migrations profoundly reshaped the frontier, encountering violent resistance from indigenous nations and severe hardships, including devastating epidemics like the smallpox outbreak of 1781.

Internal tensions like Shays’ Rebellion exposed critical weaknesses in national governance, prompting constitutional reform. Simultaneously, Loyalist migrations restructured British Canadian territories. These complex interactions among settlers, indigenous nations, and emergent national governments created foundational dynamics influencing the region’s future trajectory.

The economy during the American Revolutionary War had been one of little more than subsistence agriculture in the rural parts of New England, particularly in the hill-towns of central and western Massachusetts.

Some residents in these areas have little in the way of assets beyond their land and barter with one another for goods or services.

In lean times, farmers might obtain goods on credit from suppliers in local market towns who would be paid when times were better.

In the more economically developed coastal areas of Massachusetts Bay and in the fertile Connecticut River Valley, the economy is basically a market economy, driven by the activities of wholesale merchants dealing with Europe, the West Indies and elsewhere on the North American coast.

The state government is dominated by this merchant class.

Populist Governor John Hancock refuses to crack down on tax delinquencies, and accepts devalued paper currency for debts.

When the Revolutionary War ends in 1783, the European business partners of Massachusetts merchants refuse  to extend lines of credit to them and insist that they pay for goods with hard currency.

Despite the continent-wide shortage of such currency, merchants begin to demand the same from their local business partners, including those merchants operating in the market towns in the state's interior.

Many of these merchants pass on this demand to their customers, although the popular governor, John Hancock, does not impose hard currency demands on poorer borrowers and refuses to actively prosecute the collection of delinquent taxes.

The rural farming population is generally unable to meet the demands being made of them by merchants or the civil authorities, and individuals begin to lose their land and other possessions when they are unable to fulfill their debt and tax obligations.

This leads to strong resentments against tax collectors and the courts, where creditors obtain and enforced judgments against debtors, and where tax collectors obtain judgments authorizing property seizures.

Overlaid upon these financial issues is the fact that veterans of the war had received little pay during the war and face difficulty collecting pay owed them from the State or the Congress of the Confederation.

Some of the soldiers, Daniel Shays among them, begin to organize protests against these oppressive economic conditions.

Shays had been a farmhand from Massachusetts when the Revolution broke out; he joined the Continental Army, saw action at the Battles of Lexington and Concord, Bunker Hill and Saratoga, and was eventually wounded in action.

In 1780, he resigned from the army unpaid and went home to find himself in court for nonpayment of debts.

He had soon realized that he was not alone in his inability to pay his debts and began organizing for debt relief.

One early protest against the government had been led by Job Shattuck of Groton on the New Hampshire border, who in 1782 had organized residents there to physically prevent tax collectors from doing their work.

A second, larger-scale protest takes place in the Massachusetts town of Uxbridge, in Worcester County on the Rhode Island border.

On February 3, 1783, a mob seizes property that had been confiscated by a local constable and returned it to its owners.

Governor Hancock orders the sheriff to suppress these actions.

Most rural communities attempt to use the legislative process to gain relief.

Petitions and proposals are repeatedly submitted to the state legislature to issue paper currency.

Such inflationary issues will depreciate the currency, making it possible to meet obligations made at high values with lower-valued paper.

The merchants, among them James Bowdoin, are opposed to the idea, since they are generally lenders who stand to lose from such proposals.

As a result, these proposals are repeatedly rejected.

Governor Hancock, accused by some of anticipating trouble, resigns citing health reasons in early 1785.

When Bowdoin (a perennial loser to Hancock in earlier elections) is elected governor this year, matters become more severe.

Bowdoin steps up civil actions to collect back taxes, and the legislature exacerbates the situation by levying an additional property tax to raise funds for the state's portion of foreign debt payments.

The war, after finally ending in 1783, had been followed by a period of prosperity.

The national government is still operating under the Articles of Confederation and is able to settle the issue of the western territories, which are ceded by the states to Congress.

American settlers move rapidly into those areas; Vermont, Kentucky, and Tennessee will become states in the 1790s.

However, the national government has no money to pay either the war debts owed to European nations and the private banks, or to pay Americans who had been given millions of dollars of promissory notes for supplies during the war.

Nationalists led by Washington, Alexander Hamilton, and other veterans fear that the new nation is too fragile to withstand an international war, or even internal revolts such as the Shays' Rebellion of 1786 in Massachusetts.

People in the newly formed United States, hard hit by the severe economic depression of the mid 1780s and unable to pay their debts are forced first into court, then into jail.

Farmers of Western Massachusetts view these troubles as arising from the mercantile elite of Eastern Massachusetts, especially Boston, who demand hard currency to pay foreign creditors and put transatlantic trade on a firm footing.

Opposition to high taxes and stringent economic conditions begins with petitions to the government for paper currency, lower taxes, and judicial reform.

When this fails, active opposition begins in western Massachusetts on August 29, 1786, when an armed body of farmers storms the Court of Common Pleas in Northampton to prevent the further trial and imprisonment of debtors.

Other companies of armed bands in the weeks following the action at Northampton force the closing of several courts to prevent execution of foreclosures and debt processes.

They mob the court buildings in Great Barrington, Worcester, Taunton and Concord to prevent the sitting of the courts, deeming their actions grossly unfair to working people.

Matters are resolved without violence in Rhode island because the "country party" gains control of the legislature in 1786 and enacts measures forcing its merchant elites to trade debt instruments for devalued currency

The impact of this is not lost on Boston's merchants, especially Bowdoin, who holds more than £3,000 in Massachusetts notes.

Daniel Shays emerges as one of several leaders of what by chance comes to be called Shays' Rebellion.

Born circa 1747 to parents of Irish descent, Shays had fought for American independence from 1775 until his resignation, with the rank of captain, in 1780.

He had settled in Pelham, Massachusetts, where he holds several town offices.

Shays, who had participated in the Northampton action, will begin to take a more active role in the uprising in November, though he will firmly deny that he was one of its leaders.

The Supreme Judicial Court of Massachusetts on September 19 had indicted eleven leaders of the rebellion as "disorderly, riotous, and seditious persons."

When the supreme judicial court wi next scheduled to meet in Springfield on September 26, Shays in Hampshire County and Luke Day in what is now Hampden County (but is at this time part of Hampshire County) organize an attempt to shut it down.

They are anticipated by William Shepard, the local militia commander, who had begun gathering government-supporting militia the Saturday before the court was to sit.

By the time the court was ready to open, Shepard had three hundred men protecting the Springfield courthouse.

Shays and Day have been able to recruit a similar number, but choose only to demonstrate, exercising their troops outside Shepard's lines, rather than attempt to seize the building.

Many insurgents wear their old Continental Army uniforms with a sprig of hemlock in their hat.

The judges first postpone  the hearings,  then adjourned on the 28th without hearing any cases.

Shepard withdraws his force, which has grown to some eight hundred men (to the Regulators' twelve hundred), to the federal armory, which is at this time only rumored to be the target of seizure by the activists