21st Century

The 21st century saw the dawn of the war on terrorism, as the 9/11 attacks and the Boston Marathon bombing dramatically changed society. Economic issues moved to the forefront during the Great Recession. The COVID-19 pandemic upended lives and economies around the world. Awareness of social inequality grew as the killings of Black Americans, including Trayvon Martin and George Floyd, spurred widespread protests.

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Illustration by Eduardo Ramón Trejo. Photos from Getty Images.

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In the wake of the attacks of 9/11, President George W. Bush launched an ongoing effort to thwart terrorists before they act.

Breaches in the system of levees and floodwalls left 80 percent of the city underwater.

Look back at 14 events, achievements, tragedies and otherwise memorable moments that stood out during the 2010s.

The 2020 outbreak of the infectious respiratory disease known as COVID-19 triggered one of the deadliest pandemics in modern history.

Here’s What Caused the Great Recession

Here's What Caused the Great Recession

Discover the confluence of events that prompted the Great Recession in America and its main culprit: the subprime mortgage housing crisis.

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21st Century

Escalating wars abroad and culture wars at home made 2025 a turbulent and transformative year.

Firefighters. First responders. Ordinary citizens. Even canines.

National Arab American Heritage Month, held every April since 2017, celebrates the culture, contributions and diversity of Arab Americans.

21st Century

The Ferryboat Captain Who Saved Lives on 9/11

On 9/11, NYC ferry Captain Richard Thornton joined others in rescuing 500,000+ people by boat from Manhattan to safety.

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21st Century

The Great Y2K Scare

Before 2000, many feared the internet would crash at midnight on New Year’s Day and disrupt the world—but how real was the panic?

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21st Century

The Pediatrician Who Exposed the Flint Water Crisis

In 2015, a pediatrician discovers that Flint Michigan's water supply changed sources and ran the risk of being tainted by lead. Against public criticism, she fought to expose the problem to the wider public.

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21st Century

9/11 I Was There: The Moment Tragedy Struck

Video footage captured on September 11th, 2001, reveals the moment tragedy struck and the moments following.

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Overspending, lower oil prices and political unrest all combined to trigger a decline for the once-prosperous nation.

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21st Century

Here's What Caused the Great Recession

Discover the confluence of events that prompted the Great Recession in America and its main culprit: the subprime mortgage housing crisis.

3:21m watch

A.J. Luna worked in security and convoy communications. The threat of being hit by a bomb or a sniper was constant.

The harrowing decision was made during the first hour after the attacks—by Vice President Cheney.

The phrase that suggests a failure to pick up on social cues has been around for at least 50 years.

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The year 2018 was marked by milestones in the #MeToo movement, a contentious Supreme Court hearing, battles over immigration and a groundbreaking royal wedding.

Since its founding in 1945, the organization has been on the front lines of some of the biggest events in world history.

Take a look back at the most important events in politics, culture, science and the environment.

The attacks of 9/11 shocked the nation—and led to changes that altered U.S. government, travel and culture.

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