L. Ron Hubbard publishes "Dianetics: The Modern Science of Mental Health," which outlines the basic principles of Scientology.
The Church of Scientology is officially founded in Los Angeles, California.
The first "Advanced Organization" is established in Phoenix, Arizona, which offers advanced training in Scientology practices.
L. Ron Hubbard creates the Sea Organization, a paramilitary group of dedicated Scientologists who sign billion-year contracts to serve the Church.
The Church of Scientology gains tax-exempt status as a religion in the United States.
The Church of Scientology is raided by the FBI, and 11 high-ranking members are indicted on charges of conspiracy and theft.
The Church of Scientology establishes the "Rehabilitation Project Force," a controversial program in which members deemed to be "defective" are required to do manual labor and undergo intense auditing to address their supposed shortcomings.
L. Ron Hubbard dies, and David Miscavige becomes the new leader of the Church of Scientology.
The Church of Scientology reaches a settlement with the IRS, which grants the organization tax-exempt status in the United States.
The online "Anonymous" movement begins to protest against the Church of Scientology, accusing it of unethical practices and abuses of power.
The HBO documentary "Going Clear: Scientology and the Prison of Belief" is released, which examines the inner workings of the Church of Scientology and its controversial history.