Practice:Psidlearning/my practice area

Introduction


History is the study and interpretation of the record of people, societies and civilisations.


 * 1) The term history comes from the Greek ἱστορία historia, "an account of one's inquiries," and shares that etymology with the English word story.


 * 1) It is everything that undergoes change; and as modern science has shown that there is nothing absolutely static, therefore

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&ne;
 * 1) &le;
 * 2) &radic;
 * 3) &int;
 * 4) &int;{x-y}
 * 5) &sum;{x-y}
 * 6) &sum;{x-y} 2
 * 7) &sum;(x-y) a-b<\sup>