The fifth essay in the “Creators” series is dedicated to Vladimir (Waldemar) Haffkine, the creator of the first effective vaccines against cholera and plague. At the end of the 19th century, Haffkine carried out the first mass vaccination in India. His laboratories have developed and produced tens of millions of doses of cholera and plague vaccines. In the “Creators” project, T-inavariant, together with RASA (Russian-American Science Association), continues to publish a series of biographical essays about people from the Russian Empire who made a significant contribution to world science and technology,