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| May |
DateOrganisation founderPeriodCountry where applicableHoliday typeDescription 2.May 1791 - present International national Constitution Day in Poland 3.May 1947 - present International national Constitution Day in Japan 5.May 1993 - present International national Constitution Day in Kirghizstan 11.May 1947 - present International national Constitution's Day in Laos 15.May 1811 - present Paraguay national Paraguay Independence Day 17.May Norway national Constitution Day in Norway 22.May 1990 - present Yemen national National Day of Yemen Arab Republic 25.May Argentina national National Day of Argentina 25.May International national National Day of Jordan 30.May Croatia national National Day of Croatia |
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