During the 1920s, the ACLU expanded its scope to also include protecting the free speech rights of artists and striking workers, and working with the National Association for the Advancement of Colored People ( NAACP ) to combat racism.

It was largely due to the popularity of artists such as Blind Lemon Jefferson and contemporaries such as Blind Blake and Ma Rainey that Paramount became the leading recording company for the blues in the 1920s.

In the late 1920s Alston joined Bearden and other black artists who refused to exhibit in William E. Harmon Foundation shows, which featured all-black artists in their traveling exhibits.

Also during the 1920s, an old-time music band known as the Hill Billies featuring Al Hopkins and Fiddlin ' Charlie Bowman, achieved acclaim as recording artists for Columbia Records.

Its artistic legacy includes the employment, since the 1920s, of many well-known graphic designers, illustrators and artists for its own publicity posters.

This " return to order " is evident in the work of many European artists in the 1920s, including André Derain, Giorgio de Chirico, Gino Severini, the artists of the New Objectivity movement and of the Novecento Italiano movement.

It became famous ( or according to others, infamous ) during a period spanning the 1920s to the mid 1950s as a meeting place for many of London's artists, intellectuals and bohemians such as Dylan Thomas, Augustus John, and George Orwell.

German Expressionism had begun before World War I and continued to have a strong influence throughout the 1920s, although artists were increasingly likely to position themselves in opposition to expressionist tendencies as the decade went on.

* The Lost Generation ( which characterized disillusionment ), was the name Gertrude Stein gave to American writers, poets, and artists living in Europe during the 1920s.

The Rubens Crayola line started in 1903 as well ( not in the 1920s as previously documented by many sources ) was directly targeted toward artists and designed to compete with the Raphael brand of crayons out of Europe.

In the late 1920s Matisse notably once again engaged in active collaborations with other artists.

The works of art displayed at these exhibitions were generally executed by avant-garde artists who had become recognized and esteemed in the 1920s.

The Rubens Crayola line, started in 1903 ( not in the 1920s, as claimed by some sources ), was directly targeted at artists and designed to compete with the Raphael brand of crayons from Europe.

During the 1920s American artists Gerald Murphy, Charles Demuth and Stuart Davis created paintings prefiguring the pop art movement that contained pop culture imagery such as mundane objects culled from American commercial products and advertising design.

In 1979, Laguna Beach was described as " a paradise, an inexhaustible source of inspiration " by artist Marco Sassone, one of the many artists who made the " idyllic " town home since the 1920s.

In the 1920s, Russian expatriates Count Ilya Tolstoy ( son of author Leo Tolstoy ) and George Grebentschikoff founded an artists ' colony at one end of Main Street, known as Churaevka ( or " Russian Village ").

Further afield, American painters were later ( in the 1940s and 1950s, mostly ) coined magical realists ; a link between these artists and the Neue Sachlichkeit of the 1920s was explicitly made in the New York Museum of Modern Art exhibition, tellingly titled " American Realists and Magic Realists.

Marcel Duchamp, whom she had known since the early 1920s, when she lived in Paris with her first husband Laurence Vail, had introduced Guggenheim to the art world ; it was through him that she met many artists during her frequent visits to Paris.

The orchestra remained Sydney's main orchestra for much of the 1920s, accompanying many artists brought to Australia by producer J. C. Williamson, including the legendary violinist Jascha Heifetz, who donated money to the Conservatorium library for orchestral parts.

Paramount Records was an American record label, best known for its recordings of African-American jazz and blues in the 1920s and early 1930s, including such artists as Ma Rainey and Blind Lemon Jefferson.

Hergé started out drawing in a much looser, rougher style which was influenced partially by famous American comic strip artists of the late 1920s and 1930s ..

Since the 1920s, CAMA has presented such artists as Pablo Casals, Sergei Rachmaninoff, Vladimir Horowitz, Jascha Heifetz, Igor Stravinsky, Artur Schnabel, Isaac Stern and Marian Anderson, with yearly performances from the Los Angeles Philharmonic.

Great progress was made in the field of aviation during the 1920s and 1930s, such as Charles Lindbergh's solo transatlantic flight in 1927, and Charles Kingsford Smith's transpacific flight the following year.

The Chicago Outfit, which subsequently became known as the " Capones ", was dedicated to smuggling and bootlegging liquor, and other illegal activities such as prostitution, in Chicago from the early 1920s to 1931.

The term ' Copenhagen interpretation ' suggests something more than just a spirit, such as some definite set of rules for interpreting the mathematical formalism of quantum mechanics, presumably dating back to the 1920s.

He directed dozens of silent films, including Paramount Pictures ' first production, The Squaw Man ( 1914 ), which was co-directed by Oscar Apfel, before coming into huge popularity during the late 1910s and early 1920s, when he reached the apex of his popularity with such films as Don't Change Your Husband ( 1919 ), The Ten Commandments ( 1923 ), and The King of Kings ( 1927 ).

These theories were first applied in the 1920s by Chinese scholars such as Guo Moruo, and became orthodoxy in academic study after 1949.

In the 1920s, important founders of the new style such as Martha Graham and Doris Humphrey began their work.

There are early mystery novels in which a police force attempts to contend with the type of criminal known in the 1920s as a homicidal maniac, such as a few of the early novels of Philip Macdonald and Ellery Queen's Cat of Many Tails.

Others, such as Swiss native Sophie Täuber, would remain in Zurich into the 1920s.

Popular and affordable encyclopaedias such as Harmsworth's Universal Encyclopaedia and the Children's Encyclopaedia appeared in the early 1920s.

Despite the 1891 discovery by Eugène Dubois of what is now called Homo erectus at Trinil, Java, it was only in the 1920s when such fossils were discovered in Africa, that intermediate species began to accumulate.

During the 1920s writers such as Clare Winger Harris and Gertrude Barrows Bennett published science fiction stories written from female perspectives and occasionally dealt with gender and sexuality based topics.

Besides the above, the region features other important industries including aerospace and biomedical research, as well as older industries such as agriculture and — especially since the development of the Gulf Coast beginning in the 1920s and the increase in wealth throughout the United States — tourism.

At the turn of the Industrial Age through the 1920s, families could more often afford things such as electric trains, wind up toys ( typically boats or cars ) and the increasingly valuable tin toy soldiers.

During the 1920s, several improvements were put in place, such as a new 74 cubic inch ( 1, 200 cc ) V-Twin, introduced in 1922, and the " Teardrop " gas tank in 1925.

During the US bull market of the 1920s, there were numerous such vehicles offered privately to wealthy investors.

His source, the Welsh folklorist Gwenith Gwynn, assumed that the custom had once existed on the basis of conversations with elderly Welsh people during the 1920s, none of whom had ever seen such a practice.

Several Berlin Jewish businessmen who did business with Ribbentrop in the 1920s and knew him well later expressed astonishment at the vicious anti-Semitism Ribbentrop later displayed in the Third Reich, saying that they did not see any indications that he had held such views when they knew him.

Gandhi stayed out of active politics and, as such, the limelight for most of the 1920s.

In the early 1920s, three German cryptographers ( Werner Kunze, Rudolf Schauffler and Erich Langlotz ), who were involved in breaking such systems, realized that they could never be broken if a separate randomly chosen additive number was used for every code group.

The development of Russian cinema in the 1920s by such filmmakers as Dziga Vertov and Sergei Eisenstein saw considerable progress in the use of the motion picture as a propaganda tool, yet it also served to develop the art of moviemaking.

In the 1920s, the company started to manufacture other products, such as vacuum tubes.

As nuncio during the 1920s, he had made unsuccessful attempts to obtain German agreement for such a treaty, and between 1930 and 1933 he attempted to initiate negotiations with representatives of successive German governments, but the opposition of Protestant and Socialist parties, the instability of national governments and the care of the individual states to guard their autonomy thwarted this aim.