Vintage photos show how the role of women in the workforce has evolved in the last 100 years

A woman in a knit dress with flared sleeves works at an early model desktop computer in the 1970s. Hulton Archive/Getty Images During the early 20th century, women's employment was affected by war and advancements in tech. In the 1960s and 1970s, women expanded their horizons and career opportunities. Vintage photos from the past 100 years show how their roles have changed. From factory floors to corner offices, women's roles in the workplace have undergone many reinventions over the past century. By the 1920s , decades of industrialization had drawn growing numbers of women into the workforce. Then, as men were sent off to war, more women entered the wartime effort in factories and other professions previously dominated by men.