Operating under at least five different names in the course of her career, Ruth Werner (a pen name) was a singularly accomplished spy, whose espionage activities spanned some fifteen years, from 1931 to 1946. Twice awarded the order of the Red Banner, the highest Soviet military decoration, Werner also held the rank of colonel in the Red Army.

Born in 1922, Hildegard Löwy was the youngest member of the Baum Gruppe, a mainly Jewish resistance group against the Nazis. She had firm Zionist and pacifist principles and believed communism was the best way for Jews to obtain equal rights. Arrested in April 1942, Löwy tried to escape from prison but was ultimately convicted of Communist treason and executed in a Berlin prison.

Rosa Luxemburg was a socialist revolutionary known for her critical perspective. Born in Poland, Luxemburg had become an important figure in the world socialist movement by 1913. She argued against Lenin’s hierarchal conception of party organization, and against revisionism. Luxemburg was internationalist in orientation and unflinchingly dedicated to a radical democratic vision.

Born to an impoverished Orthodox family in Bucharest, Ana Pauker joined the Romanian communist movement in 1915. She rose through the ranks, becoming one of the most powerful Communist leaders in Romania after World War II and, according to Time magazine, “the most powerful woman alive.”

A left-wing political activist and Soviet intelligence recruit, Zosha Posnanska was a fearless fighter against the Nazis and for a peaceful world.

A Communist activist before and during World War II, Olga Benário Prestes’ political activities led her to the highest ranks of the Communist Youth International. Her relationship with Brazilian Communist leader Luis Carlos Prestes, who was part of a failed coup, led to her deportation to Germany, where she was gassed at Bernburg in 1942. Although her name is not well known in the United States, Olga is famous in Brazil and was considered a great heroine in the German Democratic Republic.

Bouena Sarfatty Garfinkle, a Sephardi woman, risked her life over and over again to aid to her community during World War II. At a later stage in her life, Bouena’s historical-literary acumen enabled her to record Jewish life in Salonika during the twentieth century, including the devastation to her community at the hands of the Nazis.

Anna Seghers is considered one of the most important German women writers of the twentieth century. Her many novels and stories written during her multiple exiles, including Das siebte Kreuz (1942) adapted into the Hollywood film “The Seventh Cross,” reflect her strong socialist and anti-fascist beliefs, and she remains controversially linked to her later involvement with the East German government.

Clara Sereni was an Italian writer of Jewish descent. The rich legacy of her Jewish roots as well as her inherited passionate political commitment permeate all her narrative works. The act of writing offered Sereni an opportunity to articulate female subjectivity and language experimentation, providing a setting for exposing issues related to identity, politics of gender, disability, and ethnic diversity while building a new utopia.

Clara Lemlich Shavelson pushed union leaders to recognize the importance of women in the labor movement and sparked the famous Uprising of the 20,000 garment workers strike in 1909. She continued her activism throughout her life, organizing around women’s suffrage and leading food boycotts and rent strikes.

Esfir Shub was active as an editor, director, and writer of nonfiction films for twenty years, from 1927 to 1947—one of the few women in the Soviet Union at that time to achieve some standing in the film industry. Shub found success as a woman in the film industry by pioneering the form of compilation documentary and by producing technically competent work that satisfied the political needs of the communist moment.

Novelist and Hollywood screenwriter Tess Slesinger was born in New York on July 16, 1905. She published several works, including: The Unpossessedand Time: The Present. Slesinger died of cancer at age thirty-nine before the premiere of one of her final works, the acclaimed A Tree Grows in Brooklyn.

Virginia Levitt Snitow was a multifaceted woman who was a teacher, political activist, pre-Second Wave feminist, poet, writer and founder of US/Israel Women to Women. Ahead of her time in the fight for both civil and women’s rights, Snitow was unafraid to take unpopular stances when fighting for others.