Collaterized by crypto, BitUSD is considered the first stablecoin

The first stablecoin pegged to the US dollar launched in 2014

That coin was Tether, also known as USDT. Other key dates in stablecoin history include Circle's launch of USDC in 2018, and, more recently, President Donald Trump's signing of the GENIUS Act in 2025.

The world's largest stablecoins by market cap

The largest stablecoin by market cap, Tether (USDT), as well as the second largest, USDC, are both pegged to the US dollar. As of April 2026, Tether had a roughly $184B market cap.

Stablecoins like USDC are backed by real assets including US Treasurys and cash

While Tether (USDT) is primarily backed by US Treasury bills (64.9%), USDC is mostly backed by US Treasury repurchase agreements (49.6%). USDC also goes by the name Circle, given that it is owned by the company Circle Internet Financial.

Some argue that stablecoins are unnecessary due to the ubiquity of the US dollar

Others have criticized fiat-backed stablecoins for their lack of decentralization, believing that digital currencies not controlled by central banks will become more popular in the future.

USDC's reserves were held at Silicon Valley Bank when the bank collapsed

One of the world's largest stablecoin's reserves were held at Silicon Valley Bank, which famously failed in March 2023. USDC briefly lost its peg to the US dollar for a time as a result, within investors pulling out billions of dollars.

Stablecoins could give people in high-inflation economies access to stronger currencies

Specifically, stablecoins could provide a way to make sure these funds remain valuable during times of volatility. Some examples of people without access to the US dollar using stablecoins as a store of value have been observed in Venezuela.

Learn how stablecoins function in just 4 minutes

This video explains the basics of stablecoins in a beginner-friendly manner. It also dives a bit deeper into the larger stablecoin landscape, detailing, for instance, the many stablecoins backed by fiat currency other than the US dollar, like the euro, the Turkish lira, and the Singapore dollar.

TerraUSD offers a cautionary tale of stablecoin use

This stablecoin was completely wiped out in May 2022, losing investors roughly $40B in value, when its linked support token, LUNA, collapsed in value, triggering a spiral that wiped out the dollar peg and left both tokens essentially worthless within days. TerraUSD's creator was sentenced to 15 years in prison in 2025. (Some users may experience a paywall.)

The US dollar is the official currency of the United States and is the most circulated currency around the world

The US dollar was established in 1792 and comes in the form of coins or paper money. It's considered one of (if not the most) stable currencies in the world due to America’s strong and robust economy, as well as its relatively stable government.

Stablecoins now transfer more value than Visa or Mastercard.

Because stablecoins operate on public blockchains, transfers can occur nearly instantly without intermediaries, unlike traditional credit card networks. This has fueled stablecoins' adoption within the crypto world and in cross-border payments. Stablecoin transfer volume rose from about $3B in 2018 to roughly $18T in 2024, overtaking Visa's roughly $16T and Mastercard's $10T.

Bitcoin is the oldest and most popular cryptocurrency

Bitcoin is a digital cash alternative introduced in 2009 that rapidly grew in popularity and now boasts a global user base. Enthusiasts point to bitcoin’s decentralized nature—meaning it is not created or controlled by any central government—lending it several potential advantages.

The different types of stablecoins include algorithmic stablecoins

In addition to fiat-backed stablecoins, commodity-backed stablecoins, and cryptocurrency-backed stablecoins, algorithmic stablecoins use smart contract-based mechanisms to maintain a stable value by responding to supply and demand.

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.

DAI is a popular stablecoin backed by cryptocurrency rather than fiat currency

DAI is backed by collateralized debt denominated in several major cryptocurrencies, including ethereum's ether. It was created by Rune Christensen in 2017 with the goal of helping create a credit system that would allow users to take out loans collateralized by cryptocurrencies.

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

Crypto's origins date back to 1983

While crypto feels new, it actually dates to 1983, with eCash's creation. However, a lot has happened in the crypto world over the past few years in particular—crypto's market cap surpassed $2T for the first time in 2021, for instance. A timeline of crypto's history details the events in between.

Central banking in the US has had a fraught political history

That history includes its doomed early efforts in the First and Second National Banks, as well as its failure to address the worst financial period in US history, the Great Depression.

The trillion-dollar coin is a proposed platinum coin with a face value of $1T, which could be used to reduce the national debt

This conceptual strategy was first proposed in 2011 as a potential alternative to raising the US debt ceiling. Although there were several high-profile proponents of the idea, it was eventually rejected in 2013 by Treasury Department and Federal Reserve officials.

The SEC recently approved bitcoin ETFs in landmark investing decision

In January 2024, the US Securities and Exchange Commission made history when it decided to allow fund issuers to launch bitcoin ETFs. This new class of exchange-traded fund tracks spot bitcoin prices, essentially allowing investors to hold bitcoin without actually having to buy the crypto.

Crypto history's is full of bizarre stories

Digital currencies based solely on misspellings of former President Joe Biden’s name have skyrocketed, and backers of a token based on a Shiba Inu wearing a hat raised $690K to get their logo on the Las Vegas Sphere.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Pre-coin currencies like shells were subject to counterfeiting

While it is difficult to pinpoint the very earliest form of money that was used, a type of shell called cowrie shells were used as currency as far back as 3300–2000 BCE. These shells were imitated using ivory, bone, clam shells and more.

A gold standard is a system in which a country’s currency is pegged to, and can be converted into, a fixed amount of gold

In principle, this provides price stability as the amount of gold (and therefore the value of the currency) is limited, but also restricts the ability to modulate the money supply during economic downturns.

A company called Bluprynt is combating counterfeit cryptocurrency

While some cryptocurrency advocates might argue that it's more difficult to counterfeit crypto than physical currency, some estimate that fake cryptocurrencies are losing crypto users at least $1.6B each year.

'Floating rate' loans periodically adjust their interest rates in accordance with economic conditions

When the Federal Reserve began raising interest rates in 2022 to combat inflation, interest payments borrowers owed to private credit lenders increased accordingly. Private credit funds benefited as loan returns increased, making the asset class attractive to investors at the time.

Buffered ETFs are designed to protect investors from market downside while still providing exposure to upside

Investors typically hold them for a defined period before they “reset.” During periods of market volatility, buffered ETFs can seem particularly appealing.

Explore an alternative investments timeline

From what’s known as the first leveraged buyout, when JPMorgan acquired the Carnegie Steel Company, to the creation of the first-ever hedge fund, alternative investments have a long history.

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

Worldcoin: the cryptocurrency collecting biometric data

An ambitious project launched by OpenAI's founder Sam Altman, Worldcoin aims to provide a global financial and identity network based on proof of personhood through biometric scanning of individuals' irises.

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

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.

See a ranking of the best (and worst) Federal Reserve Chairs since 1914 out of the 16 men and women who have held the office since.

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.

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.

Brandi Chastain, the star of the 1999 US victory over China in the 1999 Women's World Cup, was a last-second choice to take the penalty kick that sealed the victory.

The first image of a black hole was captured by creating an Earth-sized virtual observatory from a network of eight radio telescopes.

While atoms are normally made of protons, neutrons, and electrons, exotic ones have been built with antimatter—alternate versions of normal matter that live for fractions of a second and are about a billion times as rare.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

Elk Cloner, the first computer virus to spread in public, was written as a practical joke by Richard Skrenta, a Pittsburgh high school student.

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.

Read a deep dive on the 'all-purpose healing' peptide BPC-157.

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

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

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.'

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

About 12.5% of US adults experience a phobia in their lifetime, a diagnosis that hinges on the intense fear interfering with daily life and persisting for at least six months.

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

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.