In the world of One Piece, power is maintained not just through military strength or massive fleets, but also by controlling information and manipulating history. The World Government is not only the largest political organization but also the keeper of the darkest secrets.
They are willing to burn ancient libraries thousands of years old, erase entire nations from the map, or brand brilliant scientists as criminals just to protect the current world order. Here are 8 key secrets the World Government has hidden for centuries through bloodshed and deception.
1. The Void Century

This is the greatest secret and the root of all oppression. A 100-year period was completely erased from official history. Anyone attempting to study this era is considered the world’s most dangerous criminal.
The World Government fears that if the truth about the Void Century is revealed, their foundation will collapse. Legendary figures like Joy Boy and Queen Nefertari D. Lili remain hidden in the shadows of time.
2. The Existence of Poneglyphs and the Ban on Reading Ancient Language

Poneglyphs are not ordinary stones. They are “black boxes” preserving the truth about world history, ancient great wars, and the path to One Piece. Because their content could expose the true face of the World Government’s founders, studying Poneglyphs is strictly forbidden.
The tragedy on Ohara Island is the harshest proof of the Government’s willingness to commit genocide to prevent knowledge of the past from leaking.
3. The Ancient Weapons: Pluton, Poseidon, and Uranus

These three weapons possess catastrophic global destructive power and terrify the World Government. Pluton is a warship capable of destroying an island. Poseidon can control the Sea Kings. Uranus remains a mysterious enigma. The Government erased all knowledge of them to prevent anyone from using their power to overthrow their rule.
4. The Identity of Imu-sama and the “Empty Throne”

Officially, the Empty Throne at Mary Geoise Sanctuary symbolizes peace, showing that the world has no single ruler. The harsh reality is that a mysterious figure named Imu sits on that throne, ruling the world from the shadows. Imu’s existence is kept secret even from high-ranking officials, only the Five Elders and the Holy Knights know the truth.
5. The True Meaning of the “D.” Initial

The “D.” is the natural enemy of the “Gods.” The World Government harbors a vague but intense fear of those bearing the “D.” initial, from Gol D. Roger to Monkey D. Luffy. These individuals are always seen as rebels threatening world order. To this day, the origin and will behind the “D.” remain a mystery even to the genius Vegapunk.
6. The Truth About the Nika Devil Fruit

For centuries, the World Government renamed the Hito Hito no Mi, Model: Nika as the Gomu Gomu no Mi (Rubber Fruit) to hide its existence. They deliberately downgraded its value among Devil Fruits to stop anyone from uncovering the legend of the “Sun God Nika”, a symbol of freedom and slave liberation. Luffy awakening this power is the Five Elders’ worst nightmare.
7. The God Valley Incident

The God Valley Incident was the site of a legendary clash involving Rocks D. Xebec, Gol D. Roger, and Monkey D. Garp. However, this island has completely vanished from the world map. The Government erased all traces of this event because it involved the brutal actions of the Celestial Dragons against slaves and civilians, as well as interference from forces they want to keep hidden from the public.
8. Media Control and Public Manipulation

Beyond hiding secrets, the World Government is a master at shaping public opinion. They distort the truth about Enies Lobby, the Ohara tragedy, and most recently, King Cobra’s death to blame others. Figures like media mogul Morgans are seen as threats for refusing to censor news. The Five Elders’ direct intervention to block Vegapunk’s messages proves that controlling information is their ultimate tool of power.