Saint Kitts and Nevis:
Independence Day, 19 September (1983)
Saint Lucia:
Independence Day, 22 February (1979)
Saint Pierre and Miquelon:
Bastille Day, 14 July (1789)
Saint Vincent and the Grenadines:
Independence Day, 27 October (1979)
Samoa:
Independence Day Celebration, 1 June (1962); note - 1 January
1962 is the date of independence from the New Zealand-administered
UN trusteeship, 1 June 1962 is the date that independence is
celebrated
San Marino:
Founding of the Republic, 3 September (301)
Sao Tome and Principe:
Independence Day, 12 July (1975)
Saudi Arabia:
Unification of the Kingdom, 23 September (1932)
Senegal:
Independence Day, 4 April (1960)
Seychelles:
Constitution Day, 18 June (1993)