Question: When did the country that became a dominant European power after the seven years' war take control of the country yielding the most Australopithecus fossils?

full_context: Document 1: Australopithecus: Then, in 1997, an almost complete Australopithecus skeleton with skull was found in the Sterkfontein caves of Gauteng, South Africa. It is now called ``Little Foot ''and it is probably around three million years old. It was named Australopithecus prometheus which has since been placed within A. africanus. Other fossil remains found in the same cave in 2008 were named Australopithecus sediba, which lived 1.9 million years ago. A. africanus probably evolved into A. sediba, which some scientists think may have evolved into H. erectus, though this is heavily disputed.
Document 2: Lucy (Australopithecus): Lucy is the common name of AL 288 - 1, several hundred pieces of bone fossils representing 40 percent of the skeleton of a female of the hominin species Australopithecus afarensis. In Ethiopia, the assembly is also known as Dinkinesh, which means ``you are marvelous ''in the Amharic language. Lucy was discovered in 1974 in Africa, near the village Hadar in the Awash Valley of the Afar Triangle in Ethiopia, by paleoanthropologist Donald Johanson of the Cleveland Museum of Natural History.
Document 3: Seven Years' War: The Seven Years' War was a global conflict fought between 1756 and 1763. It involved every European great power of the time and spanned five continents, affecting Europe, the Americas, West Africa, India, and the Philippines. The conflict split Europe into two coalitions, led by the Kingdom of Great Britain (including Prussia, Portugal, Hanover, and other small German states) on one side and the Kingdom of France (including the Austrian - led Holy Roman Empire, the Russian Empire, Bourbon Spain, and Sweden) on the other. Meanwhile, in India, the Mughal Empire, with the support of the French, tried to crush a British attempt to conquer Bengal.
Document 4: Eritrea: At Buya in Eritrea, one of the oldest hominids representing a possible link between Homo erectus and an archaic Homo sapiens was found by Italian scientists. Dated to over 1 million years old, it is the oldest skeletal find of its kind and provides a link between hominids and the earliest anatomically modern humans. It is believed that the section of the Danakil Depression in Eritrea was also a major player in terms of human evolution, and may contain other traces of evolution from Homo erectus hominids to anatomically modern humans.
Document 5: South Africa: The name ``South Africa ''is derived from the country's geographic location at the southern tip of Africa. Upon formation the country was named the Union of South Africa in English, reflecting its origin from the unification of four formerly separate British colonies. Since 1961 the long form name in English has been the`` Republic of South Africa''. In Dutch the country was named Republiek van Zuid - Afrika, replaced in 1983 by the Afrikaans Republiek van Suid - Afrika. Since 1994 the Republic has had an official name in each of its 11 official languages.
Document 6: Northern Seven Years' War: The Seven Years' War was fought between 1755 and 1764, the main conflict occurring in the seven-year period from 1756 to 1763. It involved every great power of the time except the Ottoman Empire, and affected Europe, the Americas, West Africa, India, and the Philippines. Considered a prelude to the two world wars and the greatest European war since the Thirty Years War of the 17th century, it once again split Europe into two coalitions, led by Great Britain on one side and France on the other. For the first time, aiming to curtail Britain and Prussia's ever-growing might, France formed a grand coalition of its own, which ended with failure as Britain rose as the world's predominant power, altering the European balance of power.
Document 7: Seven Years' War: The Seven Years' War was a global conflict fought between 1756 and 1763. It involved every European great power of the time and spanned five continents, affecting Europe, the Americas, West Africa, India, and the Philippines. The conflict split Europe into two coalitions, led by the Kingdom of Great Britain (including Prussia, Portugal, Hanover, and other small German states) on one side and the Kingdom of France (including the Austrian - led Holy Roman Empire, the Russian Empire, Bourbon Spain, and Sweden) on the other. Meanwhile, in India, some regional polities within the increasingly fragmented Mughal Empire, with the support of the French, tried to crush a British attempt to conquer Bengal.
Document 8: Seven Years' War: Although Anglo - French skirmishes over their American colonies had begun with what became the French and Indian War in 1754, the large - scale conflict that drew in most of the European powers was centered on Austria's desire to recover Silesia from the Prussians. Seeing the opportunity to curtail Britain's and Prussia's ever - growing might, France and Austria put aside their ancient rivalry to form a grand coalition of their own, bringing most of the other European powers to their side. Faced with this sudden turn of events, Britain aligned itself with Prussia, in a series of political manoeuvres known as the Diplomatic Revolution. However, French efforts ended in failure when the Anglo - Prussian coalition prevailed, and Britain's rise as among the world's predominant powers destroyed France's supremacy in Europe, thus altering the European balance of power.
Document 9: Australopithecus afarensis: Australopithecus afarensis (Latin: ``Southern ape from Afar '') is an extinct hominin that lived between 3.9 and 2.9 million years ago in Africa and possibly Europe. A. afarensis was slenderly built, like the younger Australopithecus africanus. A. afarensis is thought to be more closely related to the genus Homo (which includes the modern human species Homo sapiens), whether as a direct ancestor or a close relative of an unknown ancestor, than any other known primate from the same time. Some researchers include A. afarensis in the genus Praeanthropus.
Document 10: Union of South Africa: The Union of South Africa (Dutch: Unie van Zuid - Afrika, Afrikaans: Unie van Suid - Afrika) is the historic predecessor to the present - day republic of South Africa. It came into being on 31 May 1910 with the unification of four previously separate British colonies: the Cape, Natal, Transvaal and Orange River colonies. It included the territories formerly part of the Boer republics annexed in 1902, the South African Republic and the Orange Free State.
Document 11: Early expansions of hominins out of Africa: The oldest hominin sites are in East Africa. The earliest known retouched tools were found in Lomekwi, Kenya, and date back to 3.3 Ma, in the late Pliocene. They might be the product of Australopithecus garhi or Paranthropus aethiopicus, the two known hominins contemporary with the tools.
Document 12: History of South Africa: Following the defeat of the Boers in the Anglo - Boer or South African War (1899 -- 1902), the Union of South Africa was created as a dominion of the British Empire in terms of the South Africa Act 1909, which amalgamated the four previously separate British colonies: Cape Colony, Natal Colony, Transvaal Colony and Orange River Colony. The country became a self - governing nation state within the British Empire, in 1934 following enactment of the Status of the Union Act. The dominion came to an end on 31 May 1961 as the consequence of a 1960 referendum, which legitimised the country becoming a sovereign state named Republic of South Africa. A republican constitution was adopted.
Document 13: History of South Africa: Following the defeat of the Boers in the Anglo - Boer or South African War (1899 -- 1902), the Union of South Africa was created as a dominion of the British Empire in terms of the South Africa Act 1909, which amalgamated the four previously separate British colonies: Cape Colony, Natal Colony, Transvaal Colony, and Orange River Colony. The country became a self - governing nation state within the British Empire, in 1934 following enactment of the Status of the Union Act. The dominion came to an end on 31 May 1961 as the consequence of a 1960 referendum, which legitimised the country becoming a sovereign state named Republic of South Africa. A republican constitution was adopted.
Document 14: 1960 South African republic referendum: A referendum on becoming a republic was held in South Africa on 5 October 1960. The Afrikaner - dominated right - wing National Party, which had come to power in 1948, was avowedly republican, and regarded the position of Queen Elizabeth II as head of state as a relic of British imperialism. The National Party government subsequently organised the referendum on whether the then Union of South Africa should become a republic. The vote, which was restricted to whites, was narrowly approved by 52.29% of the voters. The Republic of South Africa was constituted on 31 May 1961.
Document 15: Northern Seven Years' War: Realizing that war was imminent, Prussia preemptively struck Saxony and quickly overran it. The result caused uproar across Europe. Because of Prussia's alliance with Britain, Austria formed an alliance with France, seeing an opportunity to recapture Silesia, which had been lost in a previous war. Reluctantly, by following the imperial diet, most of the states of the empire joined Austria's cause. The Anglo-Prussian alliance was joined by smaller German states (especially Hanover). Sweden, fearing Prussia's expansionist tendencies, went to war in 1757 to protect its Baltic dominions, seeing its chance when virtually all of Europe opposed Prussia. Spain, bound by the Pacte de Famille, intervened on behalf of France and together they launched an utterly unsuccessful invasion of Portugal in 1762. The Russian Empire was originally aligned with Austria, fearing Prussia's ambition on the Polish-Lithuanian Commonwealth, but switched sides upon the succession of Tsar Peter III in 1762.
ground_truth: 1909
sub_queries: where have most fossils of australopithecus been found Answer: South Africa
which country was the dominant power in europe following the seven years' war Answer: Britain
when did Britain take control of #1 Answer: 1909