Oxford Dictionary of National Biography This link opens in a new windowThe Oxford Dictionary of National Biography (DNB) is an illustrated collection of more than 57,000 specially written biographies of the men and women from around the world who shaped all aspects of Britain's past. The Oxford DNB was published in print and online in 2004. It is extended with three annual updates (each January, May and October), adding new biographies from the Romans to the 21st century. No. of concurrent users: 3