Tenth Amendment of the Constitution of India of Goa, Daman and Diu in 1961, and KG Badlani, an officer of the Indian Administrative Service (IAS) was designated Prime Minister of Dadra and Nagar Haveli for one day, so that, as head of state, he could sign an agreement with Prime Minister Jawaharlal Nehru to merge Dadra and Nagar Haveli formally with the Republic of India. On 31 December 1974, a treaty was signed between India and Portugal recognising India's sovereignty over Goa, Daman, Diu, Dadra and Nagar Haveli. The Portuguese occupied Nagar Haveli on 10 June 1783 on the basis of Friendship Treaty executed on 17 December
Prime Minister of Denmark a part of the constitutional monarchy outlined in 1848 and signed as the Danish Constitution on 5 June 1849. The new Constitution established a parliamentary system by creating a new bicameral parliament () and a Council Presidum, headed by a Council President. The Council Presidium is regarded as the predecessor of the modern Prime Minister's Office. The first Council President was Adam Wilhelm Moltke, who came to power on 22 March 1848. Molte and his next two successors also held the title of , which translates as "prime minister". From 1855 onwards the Prime Minister was known simply as the