People like Eric J. Hobsbawm

Eric John Ernest Hobsbawm was a British historian of the rise of industrial capitalism, socialism and nationalism. A life-long Marxist, his socio-political convictions influenced the character of his work. His best-known works include his tetralogy about what he called the "long 19th century", The Age of Extremes on the short 20th century, and an edited volume that introduced the influential idea of "invented traditions".