Why Is September 9 Now Attack on Titan Day? What Did AOT Really Achieve?

The manga began serialization on September 9, 2009. Now, September 9 has officially become Attack on Titan Day.

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September 9 marks the day the original manga began serialization. There's also a connection to the series' Nine Titans. The Japan Anniversary Association recognized September 9 as Attack on Titan Day in September 2026.

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What started in 2009 as a story about humanity surviving behind enormous walls became something much bigger. The manga eventually reached 34 volumes and surpassed 140 million copies sold worldwide, according to the official Attack on Titan portal.

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Attack on Titan wasn't just a Japanese phenomenon. The manga has been published in: 18 languages across more than 180 countries.

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It wasn't only about Titans and battles. The story constantly expanded its world, planted mysteries, connected seemingly unrelated details, and made viewers question what they thought they knew. And its themes went much deeper: Freedom • War • Survival • Sacrifice • Hatred • Despair

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📚 140M+ manga copies sold 🌍 180+ countries 🗣️ 18 languages 🏆 42 wins / 88 nominations listed by IMDb 🥇 2022 Anime of the Year 🌎 2025 Global Impact Award

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And 2026 isn't just about putting the name on a calendar. The official celebration includes 99 pieces of news, covering things like: Manga • Merchandise • Videos • Gaming • Collaborations • Screenings And fans could read 99 manga chapters for 99 hours through Magazine Pocket during the celebration.

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After 17 years, Attack on Titan is still being celebrated around the world. It became something bigger than a single manga or anime: A story that crossed countries, cultures and generations. That's part of what makes September 9 significant.

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Did you know? There are Attack on Titan bronze statues in Hita City, Oita Prefecture, Hajime Isayama's hometown. The statues of young Eren, Mikasa and Armin at Oyama Dam were made possible through fan-supported crowdfunding.

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Did you know? There are Attack on Titan bronze statues in Hita City, Oita Prefecture, Hajime Isayama's hometown. The statues of young Eren, Mikasa and Armin at Oyama Dam were made possible through fan-supported crowdfunding.

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How far can anime go? Attack on Titan shows how a story can become more than entertainment— something that crosses cultures, brings people together, and remains in people's memories for years.

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Want to know the full story?

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Why Is September 9 Now Attack on Titan Day? What Did AOT Really Achieve?

The manga began serialization on September 9, 2009. Now, September 9 has officially become Attack on Titan Day.

17 years of Attack on Titan. 🫡

17 years of Attack on Titan. 🫡

September 9 marks the day the original manga began serialization. There's also a connection to the series' Nine Titans. The Japan Anniversary Association recognized September 9 as Attack on Titan Day in September 2026.

Why September 9? Why this date?

Why September 9? Why this date?

What started in 2009 as a story about humanity surviving behind enormous walls became something much bigger. The manga eventually reached 34 volumes and surpassed 140 million copies sold worldwide, according to the official Attack on Titan portal.

From Manga to Global Phenomenon

From Manga to Global Phenomenon

Attack on Titan wasn't just a Japanese phenomenon. The manga has been published in: 18 languages across more than 180 countries.

It Went Worldwide

It Went Worldwide

It wasn't only about Titans and battles. The story constantly expanded its world, planted mysteries, connected seemingly unrelated details, and made viewers question what they thought they knew. And its themes went much deeper: Freedom • War • Survival • Sacrifice • Hatred • Despair

Why Did It Stand Out?

Why Did It Stand Out?

📚 140M+ manga copies sold 🌍 180+ countries 🗣️ 18 languages 🏆 42 wins / 88 nominations listed by IMDb 🥇 2022 Anime of the Year 🌎 2025 Global Impact Award

Some of Attack on Titan's achievements:

Some of Attack on Titan's achievements:

Attack on Titan Day 2026

Attack on Titan Day 2026

After 17 years, Attack on Titan is still being celebrated around the world. It became something bigger than a single manga or anime: A story that crossed countries, cultures and generations. That's part of what makes September 9 significant.

Why Does AOT Still Matter?

Why Does AOT Still Matter?

Did you know? There are Attack on Titan bronze statues in Hita City, Oita Prefecture, Hajime Isayama's hometown. The statues of young Eren, Mikasa and Armin at Oyama Dam were made possible through fan-supported crowdfunding.

AOT in the Real World

AOT in the Real World

Did you know? There are Attack on Titan bronze statues in Hita City, Oita Prefecture, Hajime Isayama's hometown. The statues of young Eren, Mikasa and Armin at Oyama Dam were made possible through fan-supported crowdfunding.

AOT in the Real World

AOT in the Real World

How far can anime go? Attack on Titan shows how a story can become more than entertainment— something that crosses cultures, brings people together, and remains in people's memories for years.

The Big Question

The Big Question

Want to know the full story?

Read Our Full Article on Anime Addictive

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