**Mikhail Vashchenko-Zakharchenko** worked on the theory of linear differential equations, the theory of probability and non-euclidean geometry.

- Following his studies in Kiev, Vashchenko-Zakharchenko went to France where he studied mathematics at the Sorbonne and then he spent the academic year 1847-48 studying at the Collège de France.
- After returning from France, Vashchenko-Zakharchenko continued his studies at Kazan University in the Russian city of Kazan about 600 km east of Moscow.
- Vashchenko-Zakharchenko entered the university soon after these major improvements had taken place and obtained his candidate's degree in 1854.
- After receiving his Master's Degree, Vashchenko-Zakharchenko was appointed to the University of Kiev as a Privatdozent in 1863.
- Vashchenko-Zakharchenko made contributions to several areas of mathematics.
- With wide ranging interests, it was natural for Vashchenko-Zakharchenko to write on a variety of topics and, indeed, his twelve textbooks cover many different topics.
- We also mention Vashchenko-Zakharchenko's Analytic geometry which he published in 1887.
- That a man so well acquainted with modern investigations of the principles of the science of space as Mr Vashchenko-Zakharchenko (a bibliography of this subject is also appended to the volume) should prove such an ardent adherent of Euclid, pure and simple, for the schools, is a truly remarkable fact.
- The article by Ziwet makes some interesting deductions from the data given in Vashchenko-Zakharchenko's Euclid where he lists 455 published editions of Euclid's Elements.
- What Vashchenko-Zakharchenko's list of editions shows is that by the middle of the 19th century Euclid's Elements was used as a textbook in Britain but in no other country in the world.
- For example, the last edition of Euclid's Elements listed by Vashchenko-Zakharchenko as published in France appeared in 1778.
- Vashchenko-Zakharchenko also wrote an important work on the history of mathematics in 1883 in which he discussed the history of mathematics up to the 15th century.
- Despite the fact that Vashchenko-Zakharchenko's translation of Euclid was free and sometimes inaccurate, and that his 'History of Mathematics: Historical treatise on the development of geometry, Volume 1' was little more than a compilation of the works of Western European authors, especially Moritz Cantor, both work were of considerable importance.

Born 12 November 1825, Maliivka, Zolotonosha, Poltava, Ukraine. Died 27 August 1912, Kiev, Russian Empire (now Kyiv, Ukraine).

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Origin Ukraine

**O’Connor, John J; Robertson, Edmund F**: MacTutor History of Mathematics Archive