Search an interactive map of Ireland to find which counties common surnames like Murphy, Walsh, and McLaughlin come from.

The influx of Irish immigrants in the mid-1800s, driven by starvation and abysmal employment opportunities, led to a significant Irish-American culture, especially in urban hubs such as New York, Boston, Philadelphia, Chicago, and San Francisco.

The toast has spread globally because of the waves of Irish immigration in the 19th and 20th centuries. It’s not uncommon to find an Irish pub outside of Ireland, and if you step inside, you’re lucky to hear someone offer a hearty “sláinte!”

Surnames are a powerful source of information, giving insight into one’s ancestral history and cultural heritage. This article explores the specifics, giving examples of how one’s last name reveals one's ethnic background or even what your ancestors did for a living. Discover more about surnames around the world, and reflect on your own personal history.

During the Mexican-American War, hundreds of Irish Catholic immigrants—facing discrimination in the US Army—defected to Mexico and formed the Saint Patrick’s Battalion. Though many were captured and executed, they remain honored as heroes in Mexico.

In 1998, the Social Security Administration began ranking the top 1,000 most common first names for each year dating back to 1880. While that list has since been whittled down, Americans can still gain insight into the trending names of the decade. Whether it’s just for curiosity or to avoid more common choices, check out this list of popular names from the past century.

The Social Security is one of the most authoritative sources for data on baby names each year. Here's the list of last year's top ten baby names among those children born in the US.

The Irish Pub Company is a Dublin-based business specializing in designing Irish pubs around the world. The outfit has created over 2,000 custom Irish pubs in over 100 countries, each with its own distinctive flair incorporating essential features of the classic Irish pub. Read about the founders and their clients here.

These interactive maps show the sites of murders across York, Oxford, and London during the 14th Century. Explore the data by clicking site pins or experimenting with map filters, including crime scene type and murder weapon. Each pin includes a blurb on what researchers concluded about the attack, such as how a fight between the London fishmonger and skinner guilds during August 1340 ultimately left one man dead.

The latest data from the US Postal Service's change of address request system shows a decline in migration in 2022. See where people are moving and where they are leaving with this data breakdown.

Discover the one-day snowfall records of every county in the US in this comprehensive map. Data from the National Oceanic and Atmospheric Administration captures inches of snowfall and the year it fell the most in each county. See the contrasts between the inches of snowfall in warm southern American states and the cooler East Coast.

For over 60 years, Ellis Island was the gateway to America, processing millions of immigrants seeking a new life. While many passed through with ease, others faced rigorous medical exams, legal scrutiny, and even deportation. Learn how this small island shaped generations of American families.

Nearly 10% of Americans suffer from some degree of hearing loss, measured as the inability to hear sounds lower than 25 decibels. The incidence of hearing loss increases with age and is typically higher among men. Recent analysis produced a puzzling observation researchers can't quite explain: There's a larger incidence of hearing loss among rural populations than in urban centers. Explore the data with this map and explainer.

An estimated 50,000 pubs dot the streets and countrysides of Britain, many of which have histories going back centuries. This deep dive traces the origins of some of the most common pub names to the medieval era, including favorites Red Lion, Crown, and Royal Oak. Learn why such names were originally chosen and how they have come to evolve in recent centuries in this comprehensive overview.

Need a visual on how prevalent slavery was in the US? Scroll through this interactive map and timeline based on census data from 1790 to 1860.

For a country famous for drinking a lot of alcohol, it might seem surprising that happy hours are banned in Ireland. But that reputation is exactly why the country banned happy hours in the first place—a 2010 report found that alcohol use in Ireland had doubled between the 1970s and the early 2000s. Read this article to learn more.

This map by CNN shows race and ethnicity across the United States. America is more diverse and has more people than ever before. According to the 2020 census, much of its growth is occurring in and around metropolitan areas. By plotting the US...

This interactive timeline tracks the development of US immigration law, overlaid with time-series data on percentages of the foreign-born population. Explore how each major policy development correlated with immigration levels, revealing the relationship between legislation and demographic change.

As of 2024, the US has 621 cities where a typical home costs $1M or more. California has more million-dollar cities than any other state by a long shot, with 218. New York comes in second with 76. Want to see where other states rank? Check out this map to learn more.

While the vast majority of contemporary Sikhs live in Punjab, India, millions have moved elsewhere in the world, especially in anglophone countries. This chart shows which countries host the largest communities of the Sikh diaspora in the world.

This interactive map visualizes Indigenous territories across the world. Users can search by location, language, or tribe to explore the histories, cultures, and present-day communities connected to specific lands.

What world record does your state hold? Check out this map of the United States to see what weird accomplishment took place near you.

Here’s a snapshot of what motherhood looks like in the U.S. today, drawn from government data and Pew Research Center surveys. The list includes seven headline statistics with visual graphs, including the average age of a mother's first childbirth...

France24's interactive visualization shows where each branch of Islam predominates across the region, from Iran's Shia majority to Saudi Arabia's Sunni dominance. The map helps make Middle Eastern politics (and conflicts) more legible.

In January 2025, the US reached a historic high of 53.3 million immigrants—nearly 16% of the population. By June of that year, the number had fallen by more than a million, ending 50 years of continuous growth in the immigrant population.

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.

Criminologist and former investigator Jillian Peterson says whether a murder is solved in the US is nearly up to the flip of a coin, with the clearance rate for murder cases being about 50%. The US, which has more guns than citizens, has about roughly five gun homicides per 100,000 residents, resulting in the 28th-highest rate of deaths from gun violence compared to the rest of the world.

This map underscores that people in the northeastern United States have more cases of the disease as compared to the south, west, and midwest. On an individual level, these numbers may still differ based on genetic makeup and other factors irrespective of where people live.

While America’s federal government primarily raises revenue through personal and corporate income taxes, it's a different story for each of the 50 states. This map shows how every state raises tax revenue for government activities. New York and California, for instance, raise most of that money through personal income taxes, whereas Texas and Florida have sales tax as their largest sources of tax revenue. Click here to see the map.

This data visualization pinpoints where accused Scottish witches lived during the witch hunts, of which there were five waves. This map also allows viewers to see the social class of the accused and where they died and were tried. Viewers also can...

You could probably name a few of America's richest people, like Elon Musk or Mark Zuckerberg, for instance. But could you name the richest families in America, like the Waltons or the Mars family? Explore the list of 2024's richest families in America—and find out how they made their money—here.

The first mention of college students in census surveys dates back to 1850, when officials realized a sizeable proportion of Americans lived on campus. More modern data from the National Center for Education Statistics capture the growth in the student population, with a breakdown beginning at the end of World War II with gender and type-of-institution data.

From 1901 to 2020, the US population has changed significantly. This video reveals the change in America’s demographics over more than 100 years.

Research examining incarceration records and crime data generally finds that immigrants—including undocumented individuals—have lower crime and incarceration rates than US-born citizens, though measurement is limited by gaps in national data on immigration status.

Using archeological, genetic, and climate data, scientists have pieced together an outline of the human odyssey—the journey that took our species from Africa to all corners of the globe. Experience this 200,000-year migration using an interactive human migration map.

For a century, US insurance companies used Sanborn Fire Maps to decide the premiums customers would pay for fire insurance. These maps were designed to show the building materials used in each structure in 12,000 communities across 300,000 maps. While they have become obsolete, these maps are still useful for historians and urban designers, and anyone interested in lovely, original typography. Dive into the most artful Sanborn Fire Maps with this passion project collection.