Extract the answer to the question from the following context. Question: What did his enemies force John to accept? Context: John (24 December 1166 19 October 1216), also known as John Lackland (Norman French: Johan sanz Terre), was King of England from 6 April 1199 until his death in 1216. John lost the duchy of Normandy to King Philip II of France, which resulted in the collapse of most of the Angevin Empire and contributed to the subsequent growth in power of the Capetian dynasty during the 13th century. The baronial revolt at the end of John's reign led to the sealing of the Magna Carta, a document sometimes considered to be an early step in the evolution of the constitution of the United Kingdom.
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Answer: the Magna Carta

Extract the answer to the question from the following context. Question: When John was ruler of Ireland when had Ireland been conquered? Context: In 1185 John made his first visit to Ireland, accompanied by 300 knights and a team of administrators. Henry had tried to have John officially proclaimed King of Ireland, but Pope Lucius III would not agree. John's first period of rule in Ireland was not a success. Ireland had only recently been conquered by Anglo-Norman forces, and tensions were still rife between Henry II, the new settlers and the existing inhabitants. John infamously offended the local Irish rulers by making fun of their unfashionable long beards, failed to make allies amongst the Anglo-Norman settlers, began to lose ground militarily against the Irish and finally returned to England later in the year, blaming the viceroy, Hugh de Lacy, for the fiasco.
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Answer: only recently

Extract the answer to the question from the following context. Question: Which of the following people supported natural selection: Darwin, Mivart, or Jenkin? Context: There were serious scientific objections to the process of natural selection as the key mechanism of evolution, including Karl von Nageli's insistence that a trivial characteristic with no adaptive advantage could not be developed by selection. Darwin conceded that these could be linked to adaptive characteristics. His estimate that the age of the Earth allowed gradual evolution was disputed by William Thomson (later awarded the title Lord Kelvin), who calculated that it had cooled in less than 100 million years. Darwin accepted blending inheritance, but Fleeming Jenkin calculated that as it mixed traits, natural selection could not accumulate useful traits. Darwin tried to meet these objections in the 5th edition. Mivart supported directed evolution, and compiled scientific and religious objections to natural selection. In response, Darwin made considerable changes to the sixth edition. The problems of the age of the Earth and heredity were only resolved in the 20th century.
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Answer:
Darwin