February 1980
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11 National Foundation Day
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March 1980
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20 Vernal Equinox Day
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April 1980
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29 Showa Day
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3 Constitution Day
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May 1980
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29 Showa Day
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3 Constitution Day
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4 Greenery Day
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5 Children's Day
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June 1980
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July 1980
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21 Marine Day
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