See above: A flapper of the 1920s holding a cigarette that has a trail of smoke leading towards the end of the image.
Watch the first two minutes of the video above for a short lesson on Women in the 1920s courtesy of Study.com's instructor, Jessica Whittemore.
Group of suffragettes gathered in 1922 with flags and banner's that state "Votes For Women." http://www.loc.gov/pictures/item/2001704199/
After waiting a long amount of time, women finally acquire suffrage when the nineteenth amendment is enacted in 1920. Throughout the early 20th century, suffragettes (women who fought for suffrage) protested, wrote, and fought together to gain the right to vote. After suffrage was achieved, women started to evolve into a larger part of the American community. Women could not only vote but were also active members in the government and society. With WWI's women soldiers, some of the previous sections of society exclusively for men were opened for women as well.
Women in the 1920s voting along with men just 2 years after they won suffrage. http://www.loc.gov/pictures/item/2002695608/
The factor that pushed the role of women was simply that the new suffrage gave women a feel for rights and they wanted to have more. This, however, was not a greedy impulse from the women of the 1920s but merely an outcome of their "taste of freedom." After seeing what their hard work has created women were not ready to stop there. Many progressive women started to wear shorter skirts and more modernized clothing. As one's sexuality became a major topic in the 1920s, women started to become the well known "flappers" to reintroduce their gender to the improving nation.
Women were free to vote and even had a greater variety of education. However, most of it was limited to "womanly duties" such as canning food in this cooking class. http://www.loc.gov/pictures/item/2016650255/
The factor that pulled the 1920s women were the older conservative men and women whose ideals were to return back to previous American greatness and even remaining the same. They completely neglected the fact that the nation was destined for a change towards equality and did not want to move forward.