ignition system: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Deleted Web site: Maps of World - Biography of Franklin Pierce the 14th President of US. Feb 19, 2013
Added new Web site: Maps of World - Biography of Franklin Pierce the 14th President of US. Jun 03, 2008
Article revised and updated. Aug 03, 2006
Article added to new online database. Jul 20, 1998
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