The pine tree flag was a rallying cry for unity and defiance during the American Revolution, featuring a bold green tree on a white background with the phrase 'An appeal to heaven.' Its history dates back to 1775, when General George Washington's Navy needed a symbol to project their identity. The flag's design was inspired by English philosopher John Locke, who wrote that when earthly authorities fail, there is still a higher authority to appeal to, God. The pine tree flag remained a maritime flag in Massachusetts until 1971 and has been associated with modern political movements, including a version flying in front of Justice Samuel Alito's vacation home.
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