late 14c., originally in grammar (of nouns), from Latin abstractus "drawn away," past participle of abstrahere "to drag away; detach divert," from ab(s)- "away" (see ab- ) + trahere "draw" (see tract ()).
Meaning "withdrawn or separated from material objects or practical matters" is from mid-15c. That of "difficult to understand, abstruse" is from . Specifically in reference to modern art, it dates from 1914; abstract expressionism as an American-based uninhibited approach to art exemplified by Jackson Pollack is from 1952, but the term itself had been used in the 1920s of Kandinsky and others. Oswald Herzog, in an article on "Der Abstrakte Expressionismus" (Sturm, heft 50, 1919) gives us a statement which with equal felicity may be applied to the artistic attitude of the Dadaists. "Abstract Expressionism is perfect Expressionism," he writes. "It is pure creation. It casts spiritual processes into a corporeal mould. It does not borrow objects from the real world; it creates its own objects .... The abstract reveals the will of the artist; it becomes expression..." [William A. Drake, "The Life and Deeds of Dada," 1922]
1 Historical review: Some topics are better understood if a brief historical review of the topic is presented to lead into the discussion of the moment. Such topics might include "a biographical sketch of a war hero," "an upcoming execution of a convicted criminal," or "drugs and the younger generation." Obviously there are many, many more topics that could be introduced by reviewing the history of the topic before the writer gets down to the nitty gritty of his paper. It is important that the historical review be brief so that it does not take over the paper.