谁有语文六年级下人教版课文的主要内容和中心思想?

History is the study of the past, with special attention to the written record of the activities of human beings over time. Scholars who write about history are called historians. It is a field of research which uses a narrative to examine and analyse the sequence of events, and it often attempts to investigate objectively the patterns of cause and effect that determine events. Historians debate the nature of history and the lessons history teaches.A famous quote by George Santayana has it that "Those who cannot remember the past are condemned to repeat it." 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.

一楼太猛烈了

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