History is the discovery, collection, organization, analysis and presentation of information about past events. History can also mean a continuous, typically chronological, record of important or public events or of a particular trend or institution. Scholars who write about history are calledhistorians. It is a field of knowledge which uses a narrative to examine and analyse the sequence of events, and it sometimes attempts to investigate objectively the patterns of cause and effect that determine events. Historians debate the nature of history and its usefulness. This includes discussing the study of the discipline as an end in itself and as a way of providing "perspective" on the problems of the present. The stories common to a particular culture, but not supported by external sources (such as the legends surrounding King Arthur) are usually classified as cultural heritage rather than the "disinterested investigation" needed by the discipline of history. Events of the past prior to written record are consideredprehistory.
Amongst scholars, the fifth century BC Greek historian Herodotus is considered to be the "father of history", and, along with his contemporaryThucydides, forms the foundations for the modern study of history. Their influence, along with other historical traditions in other parts of their world, have spawned many different interpretations of the nature of history which has evolved over the centuries and are continuing to change. The modern study of history has many different fields including those that focus on certain regions and those which focus on certain topical or thematic elements of historical investigation. Often history is taught as part of primary and secondary education, and the academic study of history is a major discipline in university studies.
The pilots later stated that their assassination attempt was in response to Diệm's autocratic rule, in which he focused more on remaining in power than on confronting the Vietcong, a Marxist–Leninistguerilla army who were threatening to overthrow the South Vietnamese government. Cử and Quốc hoped that the airstrike would expose Diệm's vulnerability and trigger a general uprising, but this failed to materialise. One bomb penetrated a room in the western wing where Diệm was reading but it failed to detonate, leading the president to claim that he had "divine protection". With the exception of Diệm's sister-in-law Madame Ngo Dinh Nhu, who escaped with minor injuries, the Ngo family were unscathed; however, three palace staff died and another 30 were injured. Afterwards, Cử managed to escape toCambodia, but Quốc was arrested and imprisoned.
A diagram of the Vegetable Lamb of Tartary, a legendary zoophytebelieved to grow sheep as fruit. It held currency in medieval times; noting the similarity between sheep's wool and the mysterious Central Asian product, and knowing it grew on a plant, many Europeans came to believe that it was taken from a sheep grown on a plant, to which it was attached by an umbilical cord. See also Dürer's Rhinoceros.
"In recent times, European nations, with the use of gunpowder and other technical improvements in warfare, controlled practically the whole world. One, the British Empire, brought under one government a quarter of the earth and its inhabitants." — John Boyd Orr