An 1873 Supreme Court case about slaughterhouses weakened parts of the 14th Amendment

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.

The 13th Amendment's criminal exception enabled new forms of forced labor

Southern states exploited the amendment's clause allowing slavery "as punishment for crime" to arrest thousands of Black Americans on minor charges, leasing them to private employers through convict labor systems that persisted for decades.

A 2013 Supreme Court case weakened federal oversight of redistricting

In Shelby County v. Holder, the Supreme Court struck down the Voting Rights Act's preclearance formula, reducing federal oversight of voting laws—including redistricting—and allowing changes to take effect without prior approval.

The Dred Scott decision denied African Americans citizenship, upheld slavery, and marked the first use of judicial review since Marbury v. Madison

This page explores the case, providing information on Dred Scott and his case before the Supreme Court. Explore the implications of one of the most critical cases in the history of the court.

The Third Amendment bars the forced housing of soldiers in private homes

The amendment was designed to address a specific grievance of the Colonies and remains the only Bill of Rights provision that has never been directly tested by a Supreme Court ruling on its merits.

Southern states enacted voting restrictions aimed at circumventing Reconstruction

After 1877, former Confederate states passed poll taxes, literacy tests, property requirements, and grandfather clauses to disenfranchise Black voters—restrictions that remained in place for nearly a century until the Voting Rights Act of 1965.

Gibbons v. Ogden expanded federal power over interstate commerce

In 1824, the Supreme Court unanimously invalidated a New York steamboat monopoly, ruling that navigation between states constitutes interstate commerce. Chief Justice John Marshall held that Congress has authority over such commerce and that conflicting state laws are void under the supremacy clause.

The Supreme Court blocked states from setting term limits for Congress

In US Term Limits v. Thornton (1995), the Supreme Court struck down state laws that tried to impose term limits on their congressional delegations. The court ruled such restrictions unconstitutional unless added through a federal amendment.

Plessy v. Ferguson legalized segregation until Brown v. Board of Education overturned it

In 1896, the Supreme Court upheld racial segregation under the "separate but equal" doctrine, enabling decades of discrimination. This explainer traces how Brown later ruled school segregation unconstitutional and reshaped civil rights law.

Citizens United extended First Amendment protections to corporate political spending

The Supreme Court's 2010 decision struck down limits on independent political expenditures by corporations and other organizations, ruling that such spending is protected speech—a decision that was deeply contested and reshaped campaign finance law.

Roe v. Wade recognized a constitutional right to abortion until Dobbs v. Jackson Women's Health Organization overturned it

For decades, the Supreme Court shaped abortion access through constitutional rulings, from Roe's recognition of a right to abortion to Dobbs' returning regulatory power to the states. This explainer tracks key cases, impacts, and current justices' views.

The Civil War permanently strengthened federal power

The Civil War expanded federal power through emancipation, national military mobilization, and postwar civil rights laws, permanently strengthening the national government and shifting the balance of authority away from the states.

In 1978, lower courts ruled that neo-Nazis had the right to march through Skokie, Illinois

Skokie was home to a large community of Holocaust survivors, making the planned march an extreme test of First Amendment principles. The courts ultimately ruled that even deeply offensive speech remains protected by the Constitution.

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 Sixth Amendment guarantees the right to a speedy trial, an impartial jury, and legal counsel

The amendment guarantees robust protections for those accused of crimes. However, states weren't required to provide attorneys for defendants who couldn't afford one until the Supreme Court's 1963 Gideon v. Wainwright ruling—172 years after ratification.

In 1975, a Major League Baseball clause that kept players legally tied to their teams after retirement was dismantled

Players fought the "reserve clause" for years, citing the Sherman Antitrust Act of 1890, but to no avail—in fact, the Supreme Court ruled professional baseball was neither interstate nor commerce in 1922. Players effectively unionized in 1966, and by 1975, an arbitration panel ruling led to the dismantling of the reserve clause, which had been the only antitrust exemption in professional sports.

A section condemning slavery was cut from the Declaration

Thomas Jefferson included a passage in his original draft denouncing slavery. This explainer from the Henry Ford Museum explores why Congress removed it to preserve colonial unity and how that decision shaped the nation's earliest political compromises.

The Bill of Rights spent more than a century largely ignored by the courts

When ratified in 1791, the Bill of Rights applied only to the federal government, which exercised little direct control over daily life. It played a limited role in early constitutional law until the 20th century, when legal advocates began using it to challenge state and local laws.

The Tenth Amendment reserves all powers not granted to the federal government to the states or the people

Any powers not delegated to the federal government by the Constitution are reserved to the states or to the people. It has been cited in legal battles over healthcare, marijuana, and environmental regulation.

How a Cleveland woman who slammed the door on police changed the Fourth Amendment

In 1957, a bomb exploded under the front porch of boxing promoter Don King in Cleveland. When police received a tip to search Dollree Mapp's home, she refused to let them in. Her case went to the Supreme Court, resulting in a ruling that barred illegally obtained evidence from state criminal trials.

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 Chinese Exclusion Act was America's first major immigration restriction

The act, signed in 1882, barred Chinese laborers from entering the United States, marking the first significant restriction on free immigration. This overview examines 19th-century Chinese immigration, rising anti-Chinese sentiment, and the diplomatic implications of exclusionary legislation.

The words 'separation of church and state' are not found in the Constitution

Responding to Connecticut Baptists concerned about religious liberty, Jefferson described the First Amendment as building "a wall of separation between church and state." The Supreme Court later cited the letter as an authoritative guide to the Establishment Clause.

A 1954 Supreme Court ruling helped quiz shows avoid regulation

When the Federal Communications Committee attempted to rein in giveaway shows, the Supreme Court ruled that quiz shows were not a form of gambling because contestants did not have to risk anything to participate. Some believe that the ruling prevented proper oversight of the industry as it became more popular.

Pierce v. Society of Sisters limited state power over how parents educate their children

In striking down Oregon’s attempt to ban private schools, the Supreme Court held that forcing children into public education violated substantive due process, affirming that parents—not the state—have a fundamental right to direct their children’s upbringing and education.

The 21st Amendment was the only amendment to repeal another

The 1933 constitutional amendment rolled back 1920's 18th Amendment, better known as Prohibition, which outlawed "the manufacture, sale or transportation of intoxicating liquors."

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

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.

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

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.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

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.

Famed poet TS Eliot rejected the manuscript for George Orwell's political fable 'Animal Farm,' writing that its criticism of authoritarianism was not 'the right point of view.'

The tragic Pulitzer Prize-winning image 'The Vulture and the Little Girl' (1993) generated controversy, raised concerns about ethics in photography, and eventually led to the photographer's death.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

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.

See how Budweiser's famous Clydesdales spend their days at Warm Springs Ranch, where roughly 70 to 80 of the beer brand's giant horses can be found at any given time.

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.

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.

Watch a 1934 short film starring jazz legend Cab Calloway, a major figure in the Harlem Renaissance's music scene

View the ten deadliest tornadoes in US history.

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Ebola species have historically been named after where they were discovered, stigmatizing residents who live there, including Bundibugyo, in Uganda.

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

Firework or sparkler burns, even if they cover a relatively small area of skin, can significantly affect our range of motion.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.