The US has 575 federally recognized tribal nations, each a sovereign government

The reservation system gives tribes limited self-governance while keeping them under federal control

Federal law designates Native nations as "domestic dependent nations"—a legal category that recognizes limited tribal sovereignty while subordinating tribes to federal authority. This ambiguous status, introduced by Chief Justice John Marshall's 1831 opinion in Cherokee Nation v. Georgia, has shaped conflicts over land and governance ever since.

How the Navajo nation works

Tribal reservations control over 89,000 square miles of land in the US, roughly 2.5% of all US land. While individual tribes are recognized as sovereigns, they are not viewed as countries by the US government. Learn how the Navajo nation in...

Tribal courts handle justice on reservations, but face strict limits on whom they can prosecute

Reservation-based courts handle civil and criminal cases, but federal law sharply limits their authority over non-tribal members. As a result, non-Native individuals who commit crimes on reservations often fall outside tribal jurisdiction, creating potential gaps in accountability.

Tribal casinos have generated billions in revenue

After Congress passed the Indian Gaming Regulatory Act in 1988, granting tribes the legal right to operate casinos on reservation land, tribal gaming expanded dramatically. Today, tribal gaming ranks among the largest revenue sources for participating tribes.

In the 1950s, the federal government tried to dissolve tribal nations and end their sovereignty

A federal policy called "termination" withdrew official recognition from more than 100 tribes in the 1950s, cutting off federal services and subjecting reservation land to state taxes and sale.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

The Iroquois Confederacy's political structure may have shaped the US Constitution

Centuries before the US existed, six Indigenous nations—the Mohawk, Oneida, Onondaga, Cayuga, Seneca, and Tuscarora—united under a shared constitution known as the Great Law of Peace. Some historians argue that the framework of federalism and representative councils influenced the American founders.

The United States is the world's oldest continuously operating federal system under a written constitution

The US pioneered federalism in the late 18th century, and many countries later adopted federal systems to manage conflict and share power. This resource features interactive maps that trace the spread of federal systems worldwide from 1900 to the present.

Native Americans built democratic systems of governance

Indigenous nations, such as the Muscogee, a confederacy of towns in the present-day Southeast, practiced participatory governance centered on communal decision-making and the consent of the governed.

A 2020 Supreme Court ruling affirmed that nearly half of Oklahoma remains tribal land

In McGirt v. Oklahoma, the Supreme Court ruled 5-4 that the Muscogee Nation's reservation was never legally dissolved, thereby stripping Oklahoma of authority to prosecute tribal members for crimes committed on that land. Season One of the "This Land" podcast further explores how reservation court systems operate.

Some tribes push for national parks to be under Indigenous control

Ojibwe author and academic David Treuer talks about his push for 80 million acres of American national park land to be returned to Indigenous stewards. Treuer proposes the government grant control of this land to a consortium of tribes, which would maintain and manage it for use by all Americans.

The EPA works directly with Indigenous nations to protect native lands

Through the National EPA-Tribal Science Council, the agency works directly with federally recognized tribes, supporting air and water monitoring, pollution cleanup, and environmental restoration. Special grant programs also exist to enable tribes to develop their own environmental programs and enhance their technical capacity.

Native American tribes still are waiting for museums to return the remains of their ancestors

The remains of more than 100,000 Native Americans are held by prestigious US institutions, despite a 1990 law meant to return them to tribal nations. Here’s how their ancestors were stolen—and how tribes are working to get them back.

States are constitutionally mandated to draw their own congressional districts

Under Article I, Section 4 of the US Constitution, state legislatures possess the authority to determine how congressional districts are drawn. However, Congress retains the power to alter these rules if it chooses to.

Illinois has more local governments than any other state

As of 2022, there were a reported total of 90,837 local government units across the US. Illinois had the highest number with 6,930, followed by Texas with 5,533. Explore all the data from the 2022 Census of Governments, which takes place every five years.

Nearly 70% of the US government’s debt is domestic

This includes intragovernmental holdings like the Social Security Trust Fund and investments from US citizens, banks, and mutual funds. About 30% is foreign-held, with countries like Japan and China as major creditors, investing in US Treasury securities due to their perceived safety.

Yellowstone was the world's first national park

Before it was designated as such, it was home to 27 Indigenous tribes, including the Blackfeet, Crow, and Nez Perce. European trappers and traders traveling west were entranced by the area’s stunning beauty and natural resources, fueling a push for the government to preserve the land for future generations.

New York City's five boroughs each function as a separate county under state law

Each of New York City's five boroughs—Manhattan, Brooklyn, Queens, the Bronx, and Staten Island—corresponds to a separate county under New York State law, forming a layered government structure that is unique among major American cities.

Every US state constitution references God or the divine, though the federal Constitution does not

God or the divine is mentioned at least once in all 50 state constitutions and nearly 200 times overall. Massachusetts has the most, with eight references, and four states do not use the word "God" but instead refer to a "Supreme Being" or "Divine Guidance."

More than 300 distinct Native American languages existed at the time of European contact

Indigenous North America exhibited vast linguistic diversity, with over 300 languages spanning dozens of unrelated language families. This variety reflected centuries of distinct cultural development across the continent's many nations and regions.

Birthright citizenship grants citizenship to those born on a country's soil

The United States grants citizenship to individuals born in its territory—excluding the children of foreign diplomats and those born in American Samoa—regardless of their parents' citizenship status. This principle—known as jus soli—was established in the 14th Amendment, ratified in 1868.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

Only 5 states have inheritance taxes

Unlike estate taxes, inheritance taxes paid by the beneficiary of the estate (the person who inherits the deceased person's financial assets). The federal government doesn't levy an inheritance tax, but five states do. They all have varying tax rates and rules.

There are 6 primary governing bodies at the UN

The United Nations is structured around six main bodies: the General Assembly, Security Council, Economic and Social Council, Trusteeship Council, International Court of Justice, and Secretariat. Each plays a distinct role in promoting peace, justice, and cooperation worldwide.

The status of federal pay transparency legislation

While many US states have pay transparency laws, no similar legislation has been passed at a federal level. However, the Salary Transparency Act was introduced in Congress in March 2023. For details about what that legislation would mandate and its status in the US House and Senate, click here.

The president can federalize state National Guard units during national emergencies

While the governor usually commands their state's National Guard, the president can assume control—federalizing the guard—under laws like the Insurrection Act or Title 10. Once federalized, troops operate under the US military chain of command.

Two-spirit relationships and identities

Queer relationships and transgender people aren’t new. Even though gay marriage has been legalized fairly recently in Western countries, people all over the world have engaged in relationships beyond heterosexuality throughout the centuries. Although contemporary tribes have various views around homosexuality, there are numerous examples of queer relationships within indigenous traditions across what is now called the Americas.

Despite being favored by 87% of Americans, Congress does not have term limits.

Calculate how much of your tax dollars go to each federal program based on your income, filing status, and number of children

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

View the ten deadliest tornadoes in US history.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

Corals are themselves not coral reefs—the term refers to the tiny marine invertebrates that build the rigid reef.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Tattoos remain visible on your skin thanks to immune cells called macrophages

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.