The US Constitution has influenced rights and governments worldwide

The US framework of government has influenced the constitutions of many other countries

In 1787, the US Constitution introduced a system built on the separation of powers and individual liberties, including freedom of speech and religion. Though widely influential, its rigidity has made it less of a modern model as countries adopt more adaptable constitutional frameworks.

The US Bill of Rights drew directly from England's own Bill of Rights

England's 1689 Bill of Rights established protections against cruel and unusual punishment and the right to petition the government. Many of its provisions were adopted nearly word for word by America's founders a century later.

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

Trace how the Bill of Rights, inspired by centuries of political theory, took shape between 1774 and 1789.

The US Constitution has been amended 27 different times since its ratification

Dive deeper into each amendment to the Constitution with resources provided by the National Constitution Center. This website features podcasts, videos, and other web resources for each of the amendments, examining their creation and their impact on today’s political and social landscape.

The Bill of Rights was designed to protect individuals from the power of the federal government

When the Bill of Rights was ratified in 1791, its protections applied only to the federal government. It wasn't until the 14th Amendment (1868) and the Supreme Court's doctrine of selective incorporation that most provisions were extended to state governments—a process that began in 1925.

The Bill of Rights was shaped by hundreds of drafts

This interactive resource from the National Constitution Center traces the complex drafting process behind the Bill of Rights, showing how state proposals and revisions evolved into the first 10 amendments.

Explore the world's oldest constitutions

The 1789 US Constitution remains the oldest active written national constitution. Older systems exist—such as San Marino’s statutes or the Magna Carta—but they are not single, codified constitutions. See how other countries compare in this visualization.

The Bill of Rights was not included in the original Constitution

The Constitution was ratified before a formal list of rights was added. To avoid reopening debates, the Founders approved the core document first, then adopted the Bill of Rights as amendments. Watch this video to find out why, and how, that happened.

Read through the actual text of the US Constitution

This helpful guide from the US Congress includes annotations that provide valuable insights into the background, crafting, and legacy of each article in the document. Additionally, the resource offers accessible legal analysis and interpretations.

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.

The Constitution included compromises that still shape the US today

The creation of the Constitution necessitated numerous compromises to accommodate the diverse interests of the states. The significant compromises included resolutions on debates over representation in Congress and the status of enslaved individuals.

Surprises you may not know about the US Constitution

This article offers intriguing and lesser known insights into the creation and content of the US Constitution. Examples include that Rhode Island disliked the Constitution so much that it almost started a civil war and that Ben Franklin was so ill he needed to be carried into the Constitutional Convention in a sedan chair.

In the US, any court can rule on constitutionality—unlike in most other countries

In the American system, known as diffuse judicial review, federal and state courts at every level may assess whether laws comply with the Constitution, and their decisions are ultimately reviewable by the Supreme Court. Many other democracies, by contrast, reserve constitutional review to specialized constitutional courts.

The US protects free speech more broadly than any other democracy

Well-known First Amendment lawyer Floyd Abrams explains that the US offers stronger free-speech protections than even close democratic allies, where hate speech is criminalized, libel laws favor plaintiffs, and a "right to be forgotten" can erase truthful information from the internet.

Explore the most impactful Supreme Court cases in US history

Browse by constitutional topic to explore key rulings, their historical impact, and the legal principles they established. Each case includes a summary of the decision, along with notable excerpts from majority and dissenting opinions.

The Bill of Rights toured the United States on the Freedom Train from 1947 to 1949

Alongside the Declaration of Independence and the Constitution, the Bill of Rights traveled the country for 18 months. Nearly 3.5 million people viewed the documents as they traveled to all 48 contiguous states in the US. (Alaska and Hawaii were not yet states.)

The Constitution was written in the same building where the Declaration of Independence was signed

The US Constitution was drafted in the Pennsylvania State House—the same building in Philadelphia where the Declaration of Independence was signed in 1776. Read this page from the National Constitution Center for other fast facts about the document.

The Declaration of Independence became a global blueprint for freedom

This documentary traces how the Declaration's language of liberty resonated through more than 100 independence movements worldwide, demonstrating how a single revolutionary text helped redefine notions of self-rule, rights, and legitimacy across centuries.

The First Amendment established religious freedom as a constitutional right—a safeguard no other nation had before

Europe had limited religious tolerance for centuries, but always as a privilege granted by rulers who could revoke it. The First Amendment in the United States was unique for the time: It banned the government from interfering with religion, making religious freedom a permanent constitutional limit on state power.

The Ninth Amendment clarifies that people hold additional rights, not granted by the Constitution

The Founders worried that listing specific rights might imply that others didn't exist. The Ninth clarifies that unenumerated rights are retained by the people, making it one of the most philosophical and least litigated amendments.

Learn about the history of the Universal Declaration of Human Rights

The Universal Declaration of Human Rights was adopted by the UN General Assembly in 1948. This video explains the history, purpose, preamble, and all 30 articles of the UDHR, which established a universal human rights standard for people worldwide.

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.

Interactive charts on human rights around the world

This website provides comprehensive data visualizations tracking human rights around the globe. While human rights have become much more protected, this varies between countries. Users can find information on how the protection of human rights has...

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."

The 14th Amendment established birthright citizenship and equal protection under law

Ratified in 1868, the 14th Amendment guaranteed citizenship to all people born in the United States and required states to provide equal protection—overturning the Dred Scott decision, which had declared that Black Americans could never be citizens or claim constitutional rights.

In 1215, the Magna Carta declared that even the king was not above the law

Forced on King John by rebellious barons, the Magna Carta established limits on royal power and the principle that rulers are subject to law. Discover how this foundational text later influenced the development of constitutional government and modern human rights traditions.

Visualize every time Congress has mentioned the word 'democracy' since 1880, and why

This Pudding interactive analyzes every mention of "democracy" in the Congressional Record over 145 years, charting how the word shifted from a partisan label to a concept, and tracking when lawmakers warned the system itself was under threat.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

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

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

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

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

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

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.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

11 people died from firework injuries in the US in 2024.

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.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

Visualize how CRISPR-Cas9—a type of immune system used by single-celled organisms to attack invasive viruses—targets and makes precise changes to a gene's DNA.

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

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

Researchers believe the brain consolidates memories, processes emotions, and plans for the future during dream states

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

The Brothers Grimm were lawyers before they were storytellers, but became interested in fairy tales as they began investigating how rules and customs had been passed down through cultures.