The United States had a washing machine that cleaned dirty dollar bills

During the Civil War, the US government printed paper money for the first time

Those original paper bills were called “greenbacks” or “demand notes.” Since then, paper money has evolved with different designs, names, and values. Today, it is solely issued by the Bureau of Engraving & Printing.

The US once had a $100K bill

There are currently seven denominations of paper money, with the highest value reaching $100. But there used to be more that have since been discontinued, including bills that sported the faces of President William McKinley and President James Madison.

The Secret Service was originally formed to combat counterfeiting

By the 1860s, an estimated one-third of US currency in circulation was counterfeit. In 1865, the Secret Service was created specifically to combat the country's serious counterfeiting problem, which had led to widespread financial instability. This was partly due to the lack of federal currency standardization in the country at the time.

The portrait of George Washington was first placed on the one-dollar bill in 1869

Trace the history of the US dollar from its colonial roots to its adoption as the national currency. The video explores the word's Germanic origins, how the dollar sign evolved from the Spanish peso, and how Washington's portrait came to define US paper currency.

Thousands of quarters and huge water bills: the economics of laundromats

There are approximately 30,000 laundromats in the US, serving the roughly 50% of apartment dwellers who do not have a washer or dryer. Shops profit when they can get their machines—roughly 30 to 40 per location, on average—to wash eight to 10 loads a day. Connections with commercial vendors help.

Every printed bill has its own unique serial number

In the US, each bill also has its own plate number, series year, Treasury seal, and more. Each design helps track money and combat counterfeiting.

The US Currency Education Program created a guide to authenticating currency

This video was created to teach everyday people a few easy ways to spot some counterfeit banknotes. Specifically, it outlines the main security features to check for that are common across many US banknotes, such as the color-shifting ink visible when tiling US banknotes $10 or higher.

The lifespan of a dollar bill

Durable, made of a cotton blend, and with billions in circulation, the common dollar bill is made to last. This video from 1440 goes inside the life of the country's paper currency, from printing to purchasing, in this quick 60-second overview.

A mysterious man named Emmerich Juettner once produced thousands of counterfeit $1 bills

After his wife died in 1937, Juettner fell into financial trouble and soon began replicating $1 bills. These bills aren’t typically prime targets for counterfeiting given their low value.

Up to $68M in coins gets trashed every year

Waste facilities and TSA say they collect thousands of dollars of discarded money per year. A Wall Street Journal reporter visited a waste facility and learned what you can do with your extra change.

The US developed a coin circulation problem in 2020

As people reduced the frequency with which they paid for things in cash and change during the COVID-19 pandemic, opting for tap-to-pay systems or online shopping instead, the number of coins in circulation decreased. Those who did make cash purchases were more likely to keep their change at home rather than use it on a subsequent purchase.

The 'Where's George?' project tracked a trail of $1 bills across the US

Over a decade ago, a group dedicated its time to tracking $1 bills in the US. They would stamp single bills with the phrases “currency tracking project” and “Track me at WheresGeorge.com” in a practice they dubbed “Georging.”

There's a myth that Al Capone coined the term 'money laundering'

Al Capone owned multiple dry cleaning businesses in Chicago that were believed to be a front for his extensive bootlegging empire, but that's most likely not where the term "money laundering" actually came from. The word didn't appear in popular lexicon until the 1970s, and there aren't recorded references to Al Capone as a money launderer until much later.

Contrary to popular belief, the $2 bill is still in circulation today

However, it is far less common than other bills. Usage of the $2 bill has been in decline for decades, but the US Treasury hasn’t retired the bill yet. A podcast episode from the Fed’s educational program explains why the Treasury doesn’t print new $2 bills every year, and why they're still considered legal tender.

Anti-money laundering laws forcing banks to report data have become important foreign policy tools

Since the Bank Secrecy Act of 1970, which required banks to report transactions exceeding $10K and keep records on customers, anti-money laundering laws have become an important proxy for American foreign policy initiatives. Increased regulation via financial institutions helps curb drug and human trafficking, as well as destabilize the financial infrastructure for terrorist organizations.

While the Fed is involved in issuing new generations of cash, the way it adds to the money supply does not involve printers

The majority of money in circulation is credit, not cash. This credit, which acts similarly to direct deposit from employers, is added to bank accounts by the Federal Reserve. The Fed also employs tools like the federal funds rate and open market operations to expand or contract credit.

Alexander Hamilton consolidated states' debts, implemented a tax system, and established a national bank

While the US was only 12 years old when Alexander Hamilton was tapped as the first secretary of the Treasury, it already owed almost $80M. With the country bringing in just $4.4M in taxes, that was not nearly enough to cover government operations and pay debts.

The Medicis of Italy innovated 'bills of exchange,' precursors to checks

At the time, lending money for interest (also known as usury) was banned in much of the Christian world. The enterprising Medicis developed bills of exchange to allow merchants to promise payment without cash or coin (with some discrete means of earning interest woven in). Learn more about how this family laid the foundation for modern banking.

Paper check usage is down 83% over 25 years

At the start of the millennium, more than 68 million checks were processed daily. Amid the adoption of automated clearinghouse (ACH) payment systems, that number has sunk to 12 million a day.

Minting a coin that can pay off the federal debt has been proposed as a quick fix to rampant borrowing

It’s uncertain how financial markets would react to such a large cash injection. Some economists warn it could trigger massive inflation. Others say the nation needs a clean slate.

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

The US Mint was among the first federal agencies to hire women

In 1795, the US Mint hired two women, named Sarah Waldrake and Rachael Summers, as adjusters. At the time, adjusters weighed blank coins and “adjusted” those weighing too much by filing them down.

The process of electronic funds transfer was approved in the US in 1978

An electronic funds transfer is the transfering of money from one bank account to another via computer-based systems. When it was first introduced, it was revolutionary. A video from 1980 aimed to explain the value of electronic funds transfer to consumers at the time.

Harry Dexter White outmaneuvered Keynes to make the dollar the center of the new global monetary system

The chief US Treasury economist at the conference, White, advocated for a dollar-centered exchange rate system over Keynes' competing idea of a new global currency, shaping the postwar economic order for decades.

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

How the US government used photography to fight poverty

In the 1930s, the US was in crisis, and the government turned to photography to win public support. Images of rural poverty stirred empathy, shifting public opinion and helping pave the way for New Deal reforms.

Mark Twain had many gripes with the US Postal Service

Twain often complained about the cost of postage and the service's inefficiencies, often sharing these criticisms in newspaper opinion pieces. Still, in 1907, the USPS issued a commemorative stamp featuring his face.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

The original copy of the Declaration of Independence is not a pristine document, and even features a smudged anonymous handprint in the bottom left corner.

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

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

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.

The history of many kitchen appliances involves unexpected discoveries and applications, including wartime radar turned hamster defroster and replacing an 'ice king' with heat-stealing boxes.

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

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.

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

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Experimental hantavirus vaccines and therapies, still under development, have long been funded by the US military.

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.

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

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

Watch how deep-sea mining equipment collects and processes polymetallic nodules—metal-rich, potato-shaped rocks—from the ocean floor and creates environmentally damaging plumes of sediments.

When a Paris department store hesitated to sell Estée Lauder's perfume, she 'accidentally' broke a bottle, causing the smell to spread throughout the store and shoppers to start asking to buy the scent.

View the ten deadliest tornadoes in US history.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Dorothy's famous entrance into Oz in 'The Wizard of Oz' relied on analog tricks, including a body double and sepia-toned paint, as much as it did on technology

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