In 1850 Nikolai entered the Naval Cadet Corps at his father's behest, and graduated from it.

He became a midshipman, then a lieutenant, and received a medal for military operations during the Crimean War in the Gulf of Finland.

[3] In 1856 Nikolai Vereshchagin entered the Faculty of Natural Sciences at St. Petersburg University.

[3] Nikolai Vasilyevich tried to set up the first cheese factory in the village of Gorodnya, but without success.

[3] From 1866 to 1868 Vereshchagin opened more than a dozen artel cheese factories in Tverskoy and Korchevskoy Uezds.