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Numerology. Numerology (known before the 20th century as arithmancy) is the belief in an occult, divine or mystical relationship between a number and one or more coinciding events. It is also the study of the numerical value, via an alphanumeric system, of the letters in words and names. When numerology is applied to a person's name, it is a ...
Frederick Jackson Turner. " The Significance of the Frontier in American History " is a seminal essay by the American historian Frederick Jackson Turner which advanced the Frontier thesis of American history. Turner's thesis had a significant impact on how people in the late 19th and early 20th centuries understood American identity, character ...
The Graduate Record Examinations ( GRE) is a standardized test that is part of the admissions process for many graduate schools [ 8] in the United States and Canada [ 9] and a few other countries. The GRE is owned and administered by Educational Testing Service (ETS). [ 10] The test was established in 1936 by the Carnegie Foundation for the ...
History (derived from Ancient Greek ἱστορία (historía) 'inquiry; knowledge acquired by investigation') [1] is the systematic study and documentation of the human past. [2] [3] The period of events before the invention of writing systems is considered prehistory. [4] ". History" is an umbrella term comprising past events as well as the ...
The process of historical revision is a common, necessary, and usually uncontroversial process which develops and refines the historical record in order to make it more complete and accurate. One form of historical revisionism involves a reversal of older moral judgments. Revision in this fashion is a more controversial topic, and can include ...
Statistical significance. In statistical hypothesis testing, [1] [2] a result has statistical significance when a result at least as "extreme" would be very infrequent if the null hypothesis were true. [3] More precisely, a study's defined significance level, denoted by , is the probability of the study rejecting the null hypothesis, given that ...
Historical method is the collection of techniques and guidelines that historians use to research and write histories of the past. Secondary sources, primary sources and material evidence such as that derived from archaeology may all be drawn on, and the historian's skill lies in identifying these sources, evaluating their relative authority, and combining their testimony appropriately in order ...
Numismatics is the study or collection of currency, including coins, tokens, paper money, medals and related objects. Specialists, known as numismatists, are often characterized as students or collectors of coins, but the discipline also includes the broader study of money and other means of payment used to resolve debts and exchange goods .