What does the we can do it poster mean?

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"Rosie the Riveter" was an iconic poster of a female factory worker flexing her muscle, exhorting other women to join the World War II effort with the declaration that "We Can Do It!" The “We Can Do It!” poster was aimed at boosting morale among workers in the World War II factories producing war materiel.

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light bulb

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representative government

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american revolution: major events leading to declaration of independence. 1765-1766; tax introduced on legal documents to pay for defense of colonies. 1766: stamp act repealed after merchants protesting due to their goods not being bout and officials being threatened.