The Nationality Act of 1790 restricted new citizenship to 'free white persons'

The first time the US federally barred immigration based on nationality

Watch this six-minute video to learn about the Chinese Exclusion Act of 1882, which was the first federal law to bar immigration explicitly because of nationality.

Early American citizenship was defined inconsistently by individual states

The original US Constitution did not define national citizenship, leaving it to the states to apply their own rules. This led to inconsistent and often exclusionary standards across the country until after the Civil War.

Native Americans were not granted US citizenship until 1924

The Indian Citizenship Act granted citizenship to all Native Americans born in the US, more than 130 years after the Constitution's ratification. Even then, some states continued to deny Native Americans the right to vote for decades.

The 1924 Immigration Act established national-origin quotas favoring certain regions

The Johnson-Reed Act established stringent national-origin quotas favoring northern and Western Europeans while restricting immigration from other regions. This article chronicles the act's origins, its implications, and subsequent efforts to overturn these restrictions.

The 14th Amendment aimed to guarantee citizenship for formerly enslaved people

The 14th Amendment was crafted to overturn Dred Scott by granting birthright citizenship to formerly enslaved people and their descendants, securing their legal status under federal law.

The Tariff Act of 1789 was one of America's first acts

One of the first acts ever passed by the United States Congress instituted tariffs on foreign goods. The bill was sponsored by then-Congressman James Madison and signed into law by President George Washington. The goods the first Congress felt necessary to tax included Jamaican rum, playing cards, and—of course—British tea.

Voting rights expanded from 6% of Americans in 1789 to nearly all adult citizens today

In the first US election, only white male property owners—about 6% of the population—could vote. Constitutional amendments culminating in the 26th Amendment gradually expanded voting rights to nearly all citizens aged 18 and older.

A timeline of US immigration laws

The United States began regulating immigration soon after it won independence from Great Britain, and the laws since enacted have reflected the politics and migrant flows of the times. Here's a timeline of key immigration laws from 1790 to 2014, according to the Pew Research Center.

Unconditional birthright citizenship is rare outside the Americas

Around 30 countries, mostly in the Americas, grant automatic citizenship by birthplace. Elsewhere—especially in Europe, Asia, and Africa—citizenship typically follows jus sanguinis, based on parental descent rather than location of birth.

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 Judiciary Act of 1789 created the foundation of the federal justice system

Passed by the First Congress, the Judiciary Act of 1789 established the federal court system, the Office of the Attorney General, and the US Marshals Service—the first law concerning national law enforcement and legal administration.

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.

President Donald Trump signed an executive order in 2025 to restrict birthright citizenship

In 2025, President Trump signed an order attempting to end automatic citizenship for children born to undocumented immigrants or temporary visa holders—limiting it to those with a US citizen or permanent resident parent.

Black Americans were systematically excluded from juries for much of US history

Literacy tests, poll taxes, and even explicit laws kept Black Americans off juries until well into the 20th century. The Jury Selection and Service Act of 1968 mandated that federal juries reflect a fair cross-section of the community, though racial disparities in jury selection persist.

The Civil Rights Act of 1964 outlawed segregation and discrimination nationwide

The Civil Rights Act, signed into law in 1964, prohibited racial segregation in public accommodations and ended discrimination based on race, color, religion, sex, and national origin in employment, while also strengthening protections in education. It established protections enforced across federally funded programs.

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.

US marshals conducted the national census for nearly a century

From 1790 to 1870, US marshals handled the national census, gathering population data from every district. The responsibility was gradually transferred to a separate federal office that would officially become the Census Bureau in 1902.

Madison's Virginia Plan proposed a strong national government with population-based representation

Crafted by Madison and introduced at the opening of the Constitutional Convention of 1787, the Virginia Plan outlined a three-branch federal government and a bicameral legislature. This plan shaped the structure and direction of the debates that led to the creation of the US Constitution.

The Monroe Doctrine was designed to keep Europe out of the Americas

First articulated in 1823 by President James Monroe, the doctrine declared the Western Hemisphere off limits to European colonization. It has since been invoked to justify US military interventions in Latin America, from Teddy Roosevelt's takeover of Venezuela to George H.W. Bush's arrest of Panama's leader Manuel Noriega.

Before the 16th Amendment, US tax law required direct taxes to be directly apportioned to a state's population

Due to these requirements, the federal government could not impose many direct taxes. Direct taxes include property and income taxes, whereas indirect taxes include duties and excises.

For years, Black players were tacitly banned from professional football leagues

In 1902, Charles Follis was the first Black player to play in a professional football game, and Black players were allowed in years after other leagues banned them. A "gentleman’s agreement” led to the league banning Black players in 1933, until four Black men reintegrated pro football in 1946.

Hamilton opposed slavery in principle but participated in the institution

Alexander Hamilton spoke against slavery, helped found the New York Manumission Society, and supported gradual emancipation while also participating in transactions involving enslaved people through his in-laws—and possibly within his own household, though historians debate this.

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

Pontiac's Rebellion prompted Britain to draw a line between colonists and Native lands in 1763

After the French and Indian War, a coalition of Indigenous nations—led by Odawa leader Pontiac—launched a major uprising against British forts. In response, Britain issued the Royal Proclamation of 1763, which reserved lands west of the Appalachian Mountains for Native peoples.

Many myths continue to circulate about the first Thanksgiving

The Thanksgiving myth didn’t really start in 1621, argues historian David Silverman in this interview with Smithsonian. Rather, it took hold over 200 years later. During the Civil War, Thanksgiving was declared a national holiday by Abraham Lincoln as a way to promote national unity. The tidy story of friendship between Native Americans and colonists was used to quell racial tensions of the late 19th century.

Since 1800, every president has lived and worked in the White House

John Adams became the first president to live in the White House when it was completed in 1800. Since then, every American president has used it as both a residence and the official seat of executive power.

The rivalry between Alexander Hamilton and Thomas Jefferson centered on federalism—the question of how much power the federal government should hold relative to the states.

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

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

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

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 first line of 'immortal' human cells, which can divide indefinitely and are used in scientific research, was nonconsensually taken from a Black woman.

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

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.

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.

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.

Many legends about George Washington, including his supposed wooden teeth and the story of cutting down the cherry tree, lack evidence.

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

The word 'jazz' evolved from 'jasm,' 19th-century American slang for 'energy'

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

70 years ago today, city officials in Santa Cruz, California, banned rock 'n' roll to protect its youth from corruption after witnessing a 'provocative' concert the night before.

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 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.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

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.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

Pure water does not conduct electricity because this flow of energy requires the movement of charged particles, and water is a neutral molecule.

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