Peasants in the re-taken Somme District work in the fields, circa 1916- 1917, in this Library of Congress handout photo. For women 100 years ago, opportunities to work beyond the home and take part in political life were very limited. As the 20th century progressed, hard-won progress included gradually improved voting rights, while the upheaval of war pushed doors ajar as women worked as part of the war effort. U.S. Library of Congress archive photos show women's workplaces ranging from a flour mill in England to a coal mine in Belgium or Lincoln Motor Co.'s welding department in Detroit. International Women's Day is celebrated on March 8. (Photo by Reuters/Bain Collection/Library of Congress)

Young Christian Lebanese women, who are members of Kataeb Phalangist party, show their skill in handling arms while they train in a village between Christian-controlled eastern port of Jounieh and the Christian village of Zahle in the west Lebanon on September 9, 1976. The Lebanese civil war erupted in April 1975. (Photo by Erich Stering/AFP Photo)

Planned improvements to Rio’s favelas have meant increases in rent, forcing the poorest families into squatting in unoccupied buildings. Photographer Tariq Zaidi visits the Mangueira community favela, less than 1km from the showpiece Maracanã stadium, to see what life is like for the women living there. Here: Victoria, 12, at her home in Mangueira. (Photo by Tariq Zaidi/The Guardian)

A model who poses for tips wearing body paint and underwear poses for a portrait in Times Square in New York, August 19, 2015. She declined to give her name. New York officials including Governor Andrew Cuomo are considering measures to curtail the activity, according to local media. (Photo by Carlo Allegri/Reuters)

Women loyal to the Houthi movement parade to show support to the movement in Sanaa, Yemen January 17, 2017. (Photo by Khaled Abdullah/Reuters)

Women perform the Chilean protest song about rape culture, “A rapist in your path”, during a protest march marking International Women's Day, in Lima, Peru. Saturday, March 7, 2020. March 8th has been sponsored by the United Nations since 1975 as International Women's Day, celebrating women's achievements and aiming to further their rights. Marches and protests are held across the globe with calls for a more gender-balanced world to mark the day. (Photo by Rodrigo Abd/AP Photo)

A woman rides a women-only bus as she returns from her college in Kathmandu January 6, 2015. Nepal's capital Kathmandu has introduced women-only buses in an attempt to reduce sexual harassment and groping on public transport, a senior government official said on Monday. The initiative will start with four 16-seater buses which will ply a popular east-west route across the city during peak morning and evening hours. (Photo by Navesh Chitrakar/Reuters)

These stunning color portraits, produced by the U.S. Office of War Information during World War II depict the role of women in the US war effort. All of the images were shot on 4x5 color transparency film by Howard R. Hollem and Alfred T. Palmer during 1942 and 1943 and were turned over to the Library of Congress Prints and Photographs Division in 1944. They are seen here with their original captions.