Britain controls the propaganda media, but here are the facts:
Discovery: The most credible discoverer of the islands was a Dutch. There is no proof of the British claim that they were the discoverers.
But the most important thing:
Discovery gives no rights over the land. Like the Russians are not claiming half of the moon because they discovered it first.
First settlement: First settlement certainly gives rights, and the first settlers were the French, who started a colony on the West Falkland.
The British claim first settlement because they temporarily, and illegally, invaded French territory, after the French colony was created. But the British not even invaded the Falklands islands themselves, but Saunder Islet, shown here in green color:
So, British claim is null from the start. They pretend to be ignorant over French right over an islet, but also that the islet gives right over the islands.
Treaty of Utrecht: The Utrecht Treaty was signed by France, Spain,
and Britain.
It transfers the Falklands islands from France to Spain, and also Gibraltar from Spain to Britain. So, the signature of Britain recognizes that the islands were French, not British, and after it Spanish.
Britain claims Gibraltar on base of that treaty, but do not recognizes the treaty over the Falklands islands.
Nootka Sound Conventions: Another treaty signed by Britain and Spain, where Britain gets West of Canada, in exchange of "staying away from South American colonies, and nearby islands". The Falklands Islands were a Spanish colony, on South America (it belongs to the continental platform), and Saunders islet was a "nearby island".
The Crown of Spain, the one, only, and undisputed owner, put the Falklands Islands under government, -and property-, of Buenos Aires. So that makes Buenos Aires the legal owner of the islands. Britain had no claim at all because
never owned the islands to start, and also
signed 2 treaties which recognize Spanish sovereignty.
Independence of Argentina Argentina starts his official existence since his Declaration of Independence, at July 9 of 1816, 17 years before the British invasion to the islands.
All territories under Buenos Aires rule were property of Argentina after independence.
It is a lie the British argument of that Argentina was created after the British invasion of 1833. And it is a lie that it would matter at all, because even if Argentina never would had been created, Buenos Aires was the owner, with or without Argentina.
Britain recognized Argentina's independence before invading the islands.
Britain invaded the islands on 1833, expelled Argentines, military occupied it, and a decade later, sent British citizens.
Since the British citizens presence is illegal, they have no property right under international law.
British have no property, and their descendants have no property. They remain foreign invaders, illegal occupiers.
The Right of Self Determination does not apply to illegal, violent foreign invaders, and concedes no property rights.
Also, how hypocrite, Britain ignored the Right of Self Determination of Turks and Caicos islands, who tried to declare independence of Britain on 2009. Britain intervened, jailed the democratically elected authorities, and imposed a de facto government.
Not enough lies and hypocrisy? Britain also was arbiter between Chile and Argentina, on the conflict over the islands of Picton, Nueva and Lennox. Britain used the rule of the judges of the international Court of Justice, and decided that the islands belong to Chile, because the king of Spain assigned the islands to Chile before the independence. Is exactly the same case of the Falklands. The King of Spain assigned them to Buenos Aires, and Britain signature, -made on the 70's, just around the time of the last Falklands war- recognizes that as a valid property right.