...is Portugal's National Day celebrated annually on 10 June.

Although officially observed only in Portugal, Portuguese citizens and emigrants throughout the world celebrate this holiday. The date commemorates the death of national literary icon Luís de Camões on 10 June 1580. Camões was an adventurer who lost one eye fighting in Ceuta, wrote the poem while traveling, and survived a shipwreck in Cochinchina (a region of present-day Vietnam). According to popular folklore, Camões saved his epic poem by swimming with one arm while keeping the other arm above water. Since his date of birth is unknown, his date of death is celebrated as Portugal's National Day.

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