Congo, Democratic Republic of the:
Independence Day, 30 June (1960)
Congo, Republic of the:
Independence Day, 15 August (1960)
Cook Islands:
Constitution Day, first Monday in August (1965)
Costa Rica:
Independence Day, 15 September (1821)
Cote d'Ivoire:
Independence Day, 7 August (1960)
Croatia:
Republic Day/Statehood Day, 30 May (1990)
Cuba:
Independence Day, 10 October (1868); note - 10 October 1868 is
the date of independence from Spain, 20 May 1902 is the date of
independence from US administration
Cyprus:
Independence Day, 1 October (1960); note - Turkish Cypriot
area celebrates 15 November (1983) as Independence Day
Czech Republic:
Czech Founding Day, 28 October (1918)
Denmark:
none designated; Constitution Day, 5 June is generally
viewed as the National Day