Realist art in the mid-nineteenth-century

Which of the following were major themes/subjects of Romantic artists?

The Common Market was

Who was responsible for the Theory of Relativity?

Realist art in the mid-nineteenth-century

Postimpressionism differed from Impressionism by

The Bastille was

Postimpressionism differed from Impressionism by

Social Darwinism was

The economic policies of Nikita Khrushchev in the 1950s and early 1960s