[4] One being the twin realms of Denmark–Norway, and the other (and most referred to) is the personal and for a short time real union between Denmark and the North German duchies of Schleswig, Holstein, and Lauenburg.

about the state connection that was sought to be maintained between 1850 and 1864 between the Danish Kingdom, Southern Jutland and the German DuchiesSimilar definitions are giving by Illustreret dansk konversationslektion and Norsk Riksmålsordbok.

[4] The first mention of the word Helstat in a historical context, is from 1885, in the book Danmark-Norges indre Historie 1660- 1720, by Edward Holm referring to the union between the two nations of Denmark and Norway, as a direct whole state.

[4] Such a definition is shared by Ole Feldbæk, who in his book Danmark-Norge 1380-1814, describes the Helstat in a contrast to Norwegian independence and autonomy.

There are also problems with the argumentation of the historians describing and defining the unitary state between Denmark and the duchies of Schleswig, Holstein, and Lauenburg.

[4] During the aftermath of the First Schleswig War the usage of the word became politically relevant in terms of creating a united constitution for both Denmark and the Duchies.

[17] There is no exact date accepted for the first usage of the political word of Helstaten, although just as Bjørn argues, Christian Molbech states that the term originated in 1848.

In the capital of Copenhagen, 20% spoke German, and in other cities like Odense, Fredericia, and Elsinore, there was a notable German-speaking population.

Laws like the Danish Citizenship Act of 1776 under which access to public positions in the kingdom of Denmark became the prerogative of native-born subjects and those who were considered their equals.

[19][20] During his rule and beyond, Helstatspatriotismen was prioritized by symbolically uniting Denmark, Norway, and Holstein as three equal parts under the Oldenburg Dynasty[a] in art and literature.

[19] After the dissolution of the Holy Roman Empire, Crown Prince Frederick annexed, in accordance with the French, Holstein into the Danish state.

[25] The Danish language was sought to be implemented in offices and churches,[24][25] yet even if the intention was to quell Holsteinian regionalism, it did the exact opposite and the annexation attempt was denounced in 1813.

[24][19][25] Modern historian, Steen Bo Frandsen, argues that if the annexation attempt had not been implemented, then there would still be Holsteinians who wished for further integration into the Danish state long after 1814.

[25] It is also argued that before nationalist sentiment began to rise, the major view in Holstein was that the connection to the Oldenburg monarch was a positive thing.

Firstly Denmark-Norway lost its fleet during the English Wars, which greatly damaged Dano-Norwegian trade commerce and connection between the Atlantic territories[b], Norway and Denmark.

Lastly, Denmark was forced on Napoleon's side and after a short war with Sweden and occupation of Schleswig and Holstein signed for peace at Kiel in 1814.

Frederick VI who was a natural supporter of the Helstatspatriotisme, had earlier declined an offer from tzar Alexander I of Russia, which in turn for handing over Norway, Denmark would get the Hanseatic cities, the North German East Coast, and even Holland[29][30] Which shows Frederick's realization of the importance of Norway, for the Helstat.

Likewise, under the Napoleonic wars, the lands north of the Elbe did not show any unwillingness or dissatisfaction with the French presence in Germany.

King Frederick, who had a clear goal to preserve Helstat with Norway, became more authoritarian, giving up his liberal worldview he had during his rule as Prince Regent.

[35] These regional assemblies unintendedly lead to civil debate and Social polarization in Schleswig between Danes and Germans.

[38] The National Liberal Party campaigned with the slogan "Danmark til ejderen"[39] (English: Denmark to the Eider) and the German nationalists in Schleswig-Holstein campaigned with a contradicting slogan to that of the Danish national liberals, called "up ewig ungedeelt"[40] (English: Forever undivided).

The reigns of Frederick VI and Christian VIIIled to only minor democratic innovations,[41] and the King's Law, Europe's only formal absolutist constitution, was still in place.

Germans and Danes lived so peacefully together in times past, but now within the same country the different nationalities face each other with enmity" In March 1848, the Schleswig-Holstein question became increasingly intense, and an ultimatum from Schleswig and Holstein was publicized.

[44] This is also the case of the future king, Christian of Schleswig-Holstein-Sonderburg-Beck, who stayed in the Danish army, while his brothers joined the revolutionary forces in the south.

[48] As head of the senior Gottorp line, Tsar Nicholas I of Russia pointed out the risk of collision with Frederick William IV of Prussia.

[48] The tsar noted the Prussian advance in Jutland as extremely unfriendly and seriously injured the interests of all the powers bordering on the Baltic.

Do not force upon the Tsar the necessity to come to the assistance with strong measures of another state whose downfall Russia cannot regard with indifference and will not tolerate.

[53] Massive protests followed, and since the constitution broke the promises of the London Protocol, Prussia, and Austria declared war in early 1864 on behalf of the German Confederation.

[57] Christian, desperate to preserve the Helstat even proposed Denmark, to join the German confederation, in return for him still being duke in Schleswig, Holstein, and Saxe-Lauenburg.

[64] Denmark was now a state consisting of only Danes, and would even reject the full annexation of Schleswig in 1920, in order not to gain any considerable minority of Germans on its southern border, this would start the Easter Crisis between the monarch and government.