25 Years After 9/11: The Day That Changed the World

September 11, 2001 began in the United States like an ordinary Tuesday.

People were on their way to work.

Planes took off from American airports.

In New York, the offices of the World Trade Center were filling up.

A few hours later, the world was a different place.

25 Years Later, People Still Remember That Day

On September 11, 2001, four passenger planes were hijacked by 19 members of the terrorist network al-Qaeda. Two planes were flown into the towers of the World Trade Center in New York, a third hit the Pentagon in Virginia. The fourth plane crashed in Pennsylvania after passengers intervened.

2,977 people were killed in the attacks.

It was one of the most consequential days of the 21st century.

What Happened on September 11, 2001?

The first events took place early in the morning on the U.S. East Coast.

Four passenger planes were hijacked.

The planes were originally traveling from the U.S. East Coast to California.

The attackers took control of the aircraft and turned them into weapons.

The official records of the 9/11 Memorial and the 9/11 Commission document the timeline of the day in detail.

8:46 a.m.

American Airlines Flight 11 hit the North Tower of the World Trade Center.

The plane struck the upper floors of the building.

At that point, many people still did not realize that it was part of a coordinated terrorist attack.

9:03 a.m.

Just a few minutes later, United Airlines Flight 175 hit the South Tower.

By then, it was clear that this was not an ordinary plane accident.

Millions of people followed the events on television and radio.

9:37 a.m.

American Airlines Flight 77 was flown into the Pentagon in Arlington, Virginia.

The Pentagon is the headquarters of the U.S. Department of Defense.

9:59 a.m.

The South Tower of the World Trade Center collapsed.

Less than an hour later, the North Tower followed.

10:03 a.m.

United Airlines Flight 93 crashed near Shanksville in the U.S. state of Pennsylvania.

Passengers and crew members had previously attempted to regain control of the plane.

The aircraft did not reach its intended target.

10:28 a.m.

The North Tower of the World Trade Center collapsed.

Both towers had now been destroyed.

What remained was a huge field of debris that later became known as Ground Zero.

Almost 3,000 People Lost Their Lives

Behind the numbers were individual people.

People with families.

People with friends.

People who went to work that morning.

People who were on the planes.

Firefighters, police officers, emergency workers, and other responders who went into the affected areas.

A total of 2,977 people were killed in the attacks of September 11, 2001.

Of those, 2,753 died in New York, 184 at the Pentagon, and 40 aboard Flight 93. The victims came from more than 90 countries.

The number does not include the 19 attackers.

The First Responders Became Victims Themselves

The losses among first responders were particularly high.

Firefighters and police officers ran into the buildings while other people were trying to escape.

Many of them did not know how unstable the situation already was.

A total of 441 first responders died in the attacks.

For New York, this also marked the beginning of one of the largest rescue and recovery operations in the city's history.

Flight 93 and the Passengers' Resistance

A particularly important story is that of United Airlines Flight 93.

The passengers and crew members learned through phone calls what had happened to the other hijacked planes.

They realized that their plane was also part of a larger attack.

Several passengers then decided to fight back against the hijackers.

Their attempt ultimately led to the plane crashing in Pennsylvania.

The aircraft did not reach its intended target.

According to the investigation by the 9/11 Commission, the plane was heading toward Washington and was presumably intended to strike a target in the capital.

New York After the Collapse of the Towers

After the Twin Towers collapsed, Lower Manhattan changed within minutes.

Huge amounts of dust and debris covered the surrounding area.

Rescue workers searched for survivors.

People tried to reach their loved ones.

Many did not know whether their friends, colleagues, or family members were safe.

The city was in shock.

At the same time, a massive search-and-rescue operation began.

The 9/11 Memorial describes the response at the World Trade Center as the largest rescue operation in the history of New York City. Around 2,000 police officers and nearly 1,000 firefighters were deployed there.

A Day That Reached Far Beyond New York

The attacks did not only affect New York.

The Pentagon was attacked.

A plane crashed in Pennsylvania.

And all civilian air traffic in the United States was temporarily grounded.

The events triggered a massive political and social response.

The United States began a long-term so-called War on Terror.

A few weeks later, the war in Afghanistan began.

The consequences therefore reached far beyond September 11 itself.

New Security Measures

Everyday travel also changed.

Airport security was tightened around the world.

Security checks became more extensive.

New security agencies and procedures were established.

The attacks also led to a major restructuring of the American security and intelligence system.

The 9/11 Commission later investigated in detail how the various agencies had operated before and during the attacks and what mistakes or structural problems had existed.

The World After 9/11

The consequences were not only political.

9/11 also influenced the media, film, television, video games, and the public perception of terrorism.

Terms such as terror alert levels, airport security, and surveillance became a greater part of everyday life.

At the same time, debates emerged about the balance between security and personal freedoms.

How much surveillance is necessary?

What measures may governments use to fight terrorism?

Where are the limits of government security measures?

Many of these questions are still being debated today.

The Impact on Muslims

Another consequence was an increase in prejudice and discrimination against Muslims and people who were perceived as Muslim because of their appearance or background.

The perpetrators were an extremist group, not an entire religion or population.

This distinction is important.

The attacks were carried out by al-Qaeda.

They cannot be attributed to Muslims as a whole or to Islam as a religion.

These social consequences are also part of the history of 9/11.

Ground Zero Became a Place of Remembrance

Where the Twin Towers once stood, the 9/11 Memorial is located today.

The two large reflecting pools mark the footprints of the former towers.

The names of the people killed in the attacks are inscribed around the pools.

A place of destruction was transformed into a place of remembrance.

The memorial describes its mission as remembering the victims, survivors, and those who risked their lives to help others.

The Museum Preserves the History

Next to the memorial is the 9/11 Memorial Museum.

There, the history of the attacks is documented through personal stories, photographs, audio recordings, videos, and preserved objects.

The historical exhibition does not focus only on September 11 itself.

It also examines the background to the attacks and their long-term consequences.

A separate section commemorates the victims.

It contains personal photographs and memories of the people who died that day.

25 Years Later

In 2026, 9/11 will be commemorated for the 25th time.

An entire generation has now grown up that did not experience September 11, 2001 firsthand.

For many younger people, 9/11 is therefore history.

They know the images from documentaries.

They learned about it at school.

Perhaps they have talked about it with their parents or grandparents.

But they were not there themselves.

That is precisely why remembering this day becomes more important as time passes.

Remembering Means More Than Just Knowing the Images

The images of the burning towers are among the most famous images of the 21st century.

But behind those images were thousands of personal stories.

Families who lost loved ones.

People who survived.

Firefighters and police officers who helped others.

People who never saw their colleagues again.

And people whose lives changed forever that day.

Every year, the 9/11 Memorial therefore not only remembers the events, but also reads out the names of the victims.

What Remains of 9/11

Twenty-five years after the attacks, many visible traces have disappeared.

The New York skyline has changed.

The World Trade Center was rebuilt.

New buildings now stand where the Twin Towers once stood.

But the memory remains.

9/11 changed international politics.

It changed security measures.

It destroyed families.

It shaped entire generations.

And it showed how quickly an apparently ordinary situation can change.

25 Years Later

September 11, 2001 was not an ordinary historical moment.

It was a day when 2,977 people lost their lives, and whose consequences reached far beyond the United States.

Today, remembering is not about spreading fear.

It is about not forgetting the people.

The victims.

The survivors.

The families.

The first responders.

And everyone whose life was changed by that day.

25 Years Later, One Message Remains Above All:

Remember. Understand. Never Forget.