may 21, 1971 - Magneto is finally subdued by a specialized prison developed by Trask Industries. It is located in the Pentagon

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After breaking out of several prisons during the 1960s, Magneto is finally subdued by a specialized prison developed by Trask Industries. It is located in the Pentagon, 1,320 ft below the Earth's surface, and is composed of industrial-grade polymers and concrete to negate Magneto's powers.

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