Quick Answer
The Void Century (空白の100年, Kūhaku no Hyaku-nen, “100 blank years”) is a 100-year historical period erased from all records in One Piece, which took place approximately 800 years ago. During this period, a titanic war pitted an ancient free civilisation (led by Joy Boy) against the Alliance of 20 Kingdoms (the future World Government). The Alliance won, founded the Government, erased history, and banned any research under pain of death. The truth is engraved on Poneglyphs scattered across the world.
Article written by the Wanted Store team — sources: One Piece manga vols. 1–110+ by Eiichiro Oda, Toei Animation anime, official SBS. Vols. 41+, 90+, 1085+. Updated on April 26, 2026.
What Is the Void Century in One Piece?
The Void Century is a period of 100 years that took place approximately 800 years before the present of the manga. During that century, major historical events unfolded — but those events were deliberately erased from official records by the World Government following its victory.
Today, in the world of One Piece:
- No history book mentions this century
- No school teaches what happened
- Any research into this period is punishable by death
- The only surviving sources are the Poneglyphs, indestructible stone steles engraved in an ancient language
This massive historical amnesia is the ideological cornerstone of the World Government.
What Happened During the Void Century
Through progressive revelations (Robin at Ohara, Dr Vegapunk’s message at Egghead), we now know that:
1. The Existence of a Great Ancient Civilisation
Before the Void Century, there existed a thriving, technologically advanced civilisation — possibly more so than the present world. This civilisation included peoples now oppressed today (Fish-Men, giants, Minks) as equals.
2. The War of the Century
An alliance of 20 kingdoms formed and declared war on the ancient civilisation. This alliance became the World Government. It represented the aristocracy and oligarchy of the dominant peoples.
3. The Defeat and the Erasure
The ancient civilisation was defeated. Its last leaders (notably Joy Boy) disappeared or were killed. The victors:
- Destroyed libraries and archives
- Founded the World Government (the 20 victorious kingdoms became the 20 original Celestial Dragons)
- Imposed a new official history
- Enslaved or marginalised non-human peoples (merfolk, giants, etc.)
4. The Secret Resistance
Before the fall, the ancient civilisation engraved its truth onto Poneglyphs — stone steles of unbreakable material, written in the ancient language that only a handful of characters (descendants of the archaeologists) can read.
The Mystery of the Ancient Kingdom
According to several clues (notably Dr Vegapunk’s revelations at Egghead), the “Ancient Kingdom” or “Golden Kingdom” was the central civilisation that opposed the Alliance. Known characteristics:
- Vastly superior technological advancement (potentially possessing weapons equivalent to the Ancient Weapons)
- Multi-racial egalitarian society (humans, Fish-Men, giants, Minks)
- Led by Joy Boy or his predecessors
- Capital possibly at Mariejois (present-day Mary Geoise) or at Lulusia Kingdom
The name “Golden Kingdom” echoes the myth of El Dorado and symbolises a vanished utopian city.
Sources of Information on the Void Century
The Poneglyphs
Indestructible stone steles engraved in the ancient language. Two types exist:
- History Poneglyphs — scattered across the world, containing fragments of the true history
- Road Poneglyphs — four specific steles that together indicate the location of Laugh Tale
Only the archaeologists of Ohara knew how to read them. The Government destroyed Ohara via the Buster Call precisely to eliminate that knowledge. Nico Robin is the sole survivor capable of reading them today.
Dr Vegapunk’s Message (Egghead)
Before his death, Dr Vegapunk broadcast a global video message revealing several truths:
- The ancient kingdom was scientifically advanced
- The world will be swallowed by the oceans in the near future
- Joy Boy returns cyclically (Roger was one reincarnation, Luffy is the next)
Survivors and Indirect Heirs
A handful of characters hold fragments of the knowledge:
- Robin — heir to the archaeology of Ohara
- Rayleigh — was part of Roger’s crew that reached Laugh Tale
- Crocus — kept Roger’s crew on Twin Cape
- The Five Elders — know the full truth (guardians of the secret)
- Im-sama — possible direct witness (immortality)
Why Does the Government Hide This History?
Three strategic reasons:
- Legitimacy of power — the Government rests on the idea that the 20 Celestial Dragons are the legitimate heirs of the world. If the public learned they are the descendants of the victors of an unjust war, their authority would collapse.
- Fear of a new uprising — knowledge of the historical truth would be a powerful driver of rebellion for oppressed peoples.
- Security of the Ancient Weapons — the Poneglyphs also contain clues to awakening the Ancient Weapons. Preventing their reading = preventing the end of the world (or the fall of the Government).
Narrative Consequences
The Void Century is the central engine of the One Piece plot. It explains:
- Why Robin was hunted all her life
- Why Ohara was destroyed (Buster Call)
- Why the Government fears Joy Boy / Luffy
- Why Fish-Men are marginalised
- Why the quest for the One Piece at Laugh Tale is so politically charged
Reading the Rio Poneglyph at Laugh Tale would reveal the full truth — it is probably the true “One Piece”.
FAQ — The Void Century
What is the Void Century?
A period of 100 years, 800 years ago, whose historical records were erased by the World Government. Any research is punishable by death. The only surviving sources are the Poneglyphs.
What happened during the Void Century?
A titanic war pitted an ancient free civilisation (led by Joy Boy) against the Alliance of 20 Kingdoms. The Alliance won, founded the World Government, and erased history.
What is the Ancient Kingdom / Golden Kingdom?
The “Ancient Kingdom” was the central civilisation that led the ancient alliance. Multi-racial, egalitarian, scientifically advanced. Destroyed at the end of the Void Century.
How do we know the truth today?
Three sources: (1) Poneglyphs scattered across the world, (2) Dr Vegapunk’s video message at Egghead, (3) indirect testimonies from Rayleigh, Crocus and Robin.
Why is Robin so important?
Because she is the only person in the world capable of reading Poneglyphs (the heritage of the Ohara archaeologists). Without her, uncovering the truth would be impossible. The Government tried to kill her for 20 years.
Do the Five Elders and Im-sama know the truth?
Yes, fully. They are the guardians of the secret. Their supernatural longevity (200+ years) suggests they were present during the Void Century, or shortly after.
What will we learn in the rest of One Piece?
The final arc will in all likelihood reveal the complete truth about the Void Century, the identity of Im-sama, and the content of the Rio Poneglyph at Laugh Tale — which may be the true “One Piece”.
