[2] Hazareesingh is the son of Kissoonsing Hazareesingh, a Cambridge- and Sorbonne-educated historian in his own right, who was a notable figure in Mauritian public life as a Mauritius Times writer and Principal Private Secretary to Seewoosagur Ramgoolam.

[5] Described in The Guardian as "a tour de force: by far the most complete, authoritative and persuasive biography of Toussaint that we are likely to have for a long time",[6] Black Spartacus was BBC Radio 4's "Book of the Week" from 16 November 2020, read by Adrian Lester.

[9] He is a member of the international reading committee of the Institut Napoléon, a French learned society founded in 1932, dedicated to Napoleonic studies.

He is on the editorial boards of the international journal Napoleonica La Revue, "an online review which aims to promote research in the history of the First and Second French Empires".

[10] Napoleonica La Revue is "published by the Fondation Napoléon, is academic, multidisciplinary, international and peer-reviewed".