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Fuller and Tennemann declare that he flourished in 500 B.C.

(7) With reference to Pythagoras, Zeller who does not know the date of his birth supposes that it occurred between the years 580-570 B.C.; and while Diogenes also supposes that it occurred between the years 582-500 B.C.; William Turner, Fuller, Rogers, and Tennemann declare that it is unknown.

(8) With reference to Empedocles, while Diogenes places his birth at 484 B.C.; Turner, Windelbrand, Fuller, B. D. Alexander and Tennemann place it at 490 B.C.; while A. K. Rogers and others declare it is unknown.

(9) With reference to Anaxagoras, while Zeller and Diogenes place his birth at 500 B.C.; William Turner, A. G. Fuller, and Frank Thilly agree with them, while Alexander places it at 450 B.C. and A. K. Rogers and others declare it is unknown.

(10) With reference to Leucippus, all historians seem to be of the opinion that he has never existed.

(11) Socrates (469-399 B.C.), Plato (427-347 B.C.), and Aristotle (384-322 B.C.) are the only three philosophers the dates of whose nativity and death do not seem to have led to speculation among historians; but the reason for this uniformity is probably clue to the fact that they were Athenians and had been indicted by the Athenian Government who would naturally have investigated them and kept a record of their cases. (A. K. Roger's Hist. of Phil. p. 104).

N.B.

It must be noted from the preceding comparative study of the chronology of Greek philosophers that (a) the variation in dates points to speculation (b) the pre-Socratic philosophers were unknown because they were foreigners to the Athenian Government and probably never existed (c) it follows that both the pre-Socratic philosophers together with Socrates, Plato and Aristotle were persecuted by the Athenian Government tor introducing foreign doctrines into Athens. (d) In consequence of these facts, any subsequent claim by the

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