The AENO (Anomalous Exploration Neutralization Organization) Is an organization specialized into containing anomalies that could pose a threat to humanity and social beliefs about Anomalies that could view them as bad and cause worldwide panic, to prevent this, The AENO sent out Memory wipers to keep every billions of people on earth in check. All facilities are usually underwater, underground, or in a mountain. The first ever recorded Anomaly was spotted in December ██ 1972, However testing discovered the Anomaly wasn't really an anomaly, but a group of anomalies.
Testing for the anomaly lasted 40 years due to the vast amount of research needed to further conduct more funds and finding more properties were difficult. And at the end of the 40 year period it was discovered that AE-0001 Was just a class of multiple other anomalies.
During the 40 year period, A scientist wrote a paper of what could possibly be AE-0002 I don't exist please stop talking about me. And once the scientist finished writing the page rewrote itself as
"Item Number: AE-0002, Item Name: Data Expunged! Containment procedures: AE-0002 has none, silly! It doesn't exist!, Hazards: Memetic, Object class: Uncertain, Description: Sorry! AE-0002 Doesn't exist!, Anomalous properties: AE-0002 Doesn't have any properties! Don't worry! You'll forget about everything." And no matter how much he rewrote it, the only things that didn't seemed to change were the Item number, Hazards, and object class. So OOO2 was found out to be memetic, and since Writing about it won't work, If the hazard type changes, so will its behavior, Infohazard makes it attempt to induce toxins into the creator, and etc.
Timeline:
1969 - AENO Founded
1972 - First Anomaly documented
1996 - First anomaly receives its designation "AE-0001"
1999 - AE-0002 Please stop calling me Discovered
2001 - AETF Teams Founded and developed
2004-2011 - More Anomalies being discovered
2012 - Testing on AE-0001 ending after being discovered as a class of anomalies.
2013-2025 - More anomalies being discovered.