The National Day of Palau is on the 9th July (Constitution Day, the world’s first nuclear-free constitution 1981; “nuclear-free” dropped in 1994 in order to become an associated state to the United States in the Compact of Free Association).
National Day of Pakistan
The National Day of Pakistan is on the 23 March (Republic Day, Islamic republic in 1956), 14 August (Independence Day, independence from the British Indian Empire in 1947).
National Day of Oman
The National Day of Oman is on the 18 November. This being the birthday of Sultan Qaboos bin Said al Said of Oman. See the history on the national day of Oman here. It marks the anniversary of the country’s independence from Portugal in 1650, as well as the birthday of Sultan Qaboos bin Said, who ruled Oman from 1970 until his death in 2020.
National Day of Norway
The National Day of Norway is on the 17 May (Constitution Day, the signing of the first Norwegian Constitution in Eidsvoll 1814). Likewise this is known as “Norway’s Constitution Day,” which as stated is celebrated annually on the 17th May year. This is for the signing of Norway’s constitution on the 17th May 1814, which established Norway as an independent nation.
National Day of Nigeria
The National Day of Nigeria is on the 1st October (Independence Day, from United Kingdom 1960. (and republic 1963)), 29 May (Democracy Day, return of democracy 1999). This day celebrates Nigeria’s declaration of independence from British colonial rule on the 1st October 1960.
National Day of Niger
The National Day of Niger is on the 18th December (Republic Day, autonomous state within the French Community 1958). It is the anniversary of Niger’s independence from France in 1960 (National Day of France). See the history on the country as well as its independence day.
National Day of Nicaragua
The National Day of Nicaragua is on the 15 September (Independence from Spain 1821). Their Independence Day or Día de la Patria is celebrated each year. Many of the countries in South America was part of the Spanish Empire. Each broke off from the Spanish as well as from each other.
National Day of New Zealand
The National Day of New Zealand is on the 6 February (Waitangi Day, signing of the Treaty of Waitangi 1840). So as you can see that the National Day of New Zealand is Waitangi Day, which is celebrated annually on the 6th February.
National Day of Netherlands
The National Day of Netherlands is on the (country) 30 April (Queensday, Queen Juliana’s birthday), 5 May (Liberation Day, from Nazi Germany in 1945). (kingdom) 15 December (Kingdom day, signing of the Charter for the Kingdom of the Netherlands 1954).
National Day of Nepal
Nepal’s National Day is celebrated on the 20th September which is known as Constitution Day or Samvidhan Diwas. The 18th February is however an important day for Nepal. This is what they call National Democracy Day. This is to commemorate the end of the autocratic Rana regime in 1951.
National Day of Nauru
The National Day of Nauru is on the 31 January (Independence from the Australia, NZ, and UK-administered UN trusteeship 1968)
National Day of Namibia
The National Day of Namibia is on the 21st March (Independence Day, from South African mandate 1990). Firstly Namibia was colonized by Germany in the late 19th century. When this ended it became part of South Africa in 1915. This ended in 1990.