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Quick answers
What happened on 20 March 1995?
Aum Shinrikyo members released sarin on five Tokyo subway trains during the morning rush toward Kasumigaseki. Thirteen people were later counted as official dead (twelve at first; one added after a 2008 survey). Thousands sought medical care. This page does not describe the release method.
Who was convicted?
Asahara Shoko (Matsumoto Chizuo) and a group of senior members were convicted. Asahara’s death sentence became final in 2006; he was executed on 6 July 2018 with other Aum convicts. About 190 members were found guilty in related cases. Status is convicted, not unsolved.
Was this a war?
No. It was a domestic criminal and terrorism case against a civilian transport system. It belongs in an investigations family, not in a wars file.
What was Aum Shinrikyo?
A Japanese new religious movement founded in the 1980s by Matsumoto Chizuo, who took the name Asahara. It mixed Buddhist and Hindu language with apocalyptic teaching and, in its criminal core, organised murders and two sarin attacks. After 2000 the main successor body used the name Aleph.
What was the Matsumoto case?
On 27 June 1994, sarin was used in Matsumoto, Nagano Prefecture, killing eight people. Once linked to Aum, it became the prior chemical crime in the same investigation family as 20 March 1995.
What laws changed?
Aum’s religious-corporation status was revoked. The Religious Corporations Act was revised in 1995. The 1999 Act on the Control of Organizations Which Have Committed Acts of Indiscriminate Mass Murder created ongoing surveillance of successor groups.
The legal impact is Japanese statute. The cultural impact is a global “cult” story.
Those two impacts are not the same size in English.
Law & institutions
- Religious Corporations Act revision 1995 — Stronger disclosure and scrutiny powers over religious juridical persons after Aum’s abuse of the status.
- Revocation of Aum’s status — The group lost its religious-corporation standing in 1995; later names did not restore the old shield.
- Organisations-control act 1999 — Created a legal basis to watch groups that had committed indiscriminate mass murder, aimed at Aum successors.
- Chemical and terrorism adjustments — Late-1990s Japanese statutes tightened chemical-weapon and terrorism-related offences in the attack’s aftermath, without turning the case into a war measure.
Culture
- “Doomsday cult” English — The phrase organised most foreign coverage and still captions the 2018 execution stories.
- Underground — Murakami’s interviews, in Japanese then English, are the main literary counterweight to guru-centred copy.
- Lost-safety thesis — English and Japanese commentary treated 20 March as the end of a postwar feeling that the capital’s trains were outside history.
- Film and anniversary news — Japanese documentaries and each 20 March newscast keep commuter testimony in domestic memory; English returns mainly on execution news.
Money & scale
- Victim compensation — State and civil payments, and the 2008 survey that corrected the death list, are the financial aftercare file.
- Aum asset seizures — Criminal-proceeds and bankruptcy proceedings stripped group property for creditors and victims.
- Transit and hospital costs — Metro closure, decontamination and emergency medicine were public costs dated to a single Monday morning.
The impact that can be cited in a statute book is Japanese. The impact that travels is a headline word: cult.
Public-record encyclopedia. Not legal advice. Not a how-to. Graphic detail is withheld. Wars belong in a separate atlas.