One of Fomenko's simplest methods is statistical
correlation of texts. His basic assumption is that a text which describes a sequence of events will devote more space to more important events (for example, a period of
war or an
unrest will have much more space devoted to than a period of
peaceful, non-eventful years), and that this irregularity will remain visible in other descriptions of the period. For each analysed text, a
function is devised which maps each year mentioned in the text with the number of pages (lines, letters) devoted in the text to its description (which could be zero). The function of the two texts are then compared.
[21]
For example, Fomenko compares the contemporary history of Rome written by
Titus Livius with a modern history of Rome written by
Russian historian V. S. Sergeev, calculating that the two have high
correlation, and thus that they describe the same period of history, which is undisputed.
[22] He also compares modern texts which describe different periods, and calculates low correlation, as expected.
[22] However, when he compares, for example, the ancient history of Rome and the medieval history of Rome, he calculates a high correlation, and concludes that ancient history of Rome is a copy of medieval history of Rome, thus clashing with mainstream accounts.
[23]