Declaration of Sentiments in the context of North Star (newspaper)

The Nineteenth Amendment (Amendment XIX) to the United States Constitution prohibits the United States and its states from denying the right to vote to citizens of the United States on the basis of sex, in effect recognizing the right of women to vote. The amendment was the culmination of a decades-long movement for women's suffrage in the United States, at both the state and national levels, and was part of the worldwide movement towards women's suffrage and part of the wider women's rights movement. The first women's suffrage amendment was introduced in Congress in 1878. However, a suffrage amendment did not pass the House of Representatives until May 21, 1919, which was quickly followed by the Senate, on June 4, 1919. It was then submitted to the states for ratification, achieving the requisite 36 ratifications to secure adoption, and thereby went into effect, on August 18, 1920. The Nineteenth Amendment's adoption was certified on August 26, 1920.

Before 1776, women had a vote in several of the colonies in what would become the United States, but by 1807 every state constitution had denied women even limited suffrage. Organizations supporting women's rights became more active in the mid-19th century and, in 1848, the Seneca Falls convention adopted the Declaration of Sentiments, which called for equality between the sexes and included a resolution urging women to secure the vote. Pro-suffrage organizations used a variety of tactics including legal arguments that relied on existing amendments. After those arguments were struck down by the U.S. Supreme Court, suffrage organizations, with activists like Susan B. Anthony and Elizabeth Cady Stanton, called for a new constitutional amendment guaranteeing women the same right to vote possessed by men.

The Seneca Falls Convention was the first women's rights convention. Its organizers advertised it as "a convention to discuss the social, civil, and religious condition and rights of woman". Held in the Wesleyan Chapel of the town of Seneca Falls, New York, it spanned two days over July 19–20, 1848. Attracting widespread attention, it was soon followed by other women's rights conventions, including the Rochester Women's Rights Convention in Rochester, New York, two weeks later. In 1850 the first in a series of annual National Women's Rights Conventions met in Worcester, Massachusetts.

Female Quakers local to the area organized the meeting along with Elizabeth Cady Stanton, who was not a Quaker. They planned the event during a visit to the area by Philadelphia-based Lucretia Mott. Mott, a Quaker, was famous for her oratorical ability, which was rare for non-Quaker women during an era in which women were often not allowed to speak in public.

Elizabeth Cady Stanton (née Cady; November 12, 1815 – October 26, 1902) was an American writer and activist who was a leader of the women's rights movement in the U.S. during the mid- to late-19th century. She was the main force behind the 1848 Seneca Falls Convention, the first convention to be called for the sole purpose of discussing women's rights, and was the primary author of its Declaration of Sentiments. Her demand for women's right to vote generated a controversy at the convention but quickly became a central tenet of the women's movement. She was also active in other social reform activities, especially abolitionism.

In 1851, she met Susan B. Anthony and formed a decades-long partnership that was crucial to the development of the women's rights movement. During the American Civil War, they established the Women's Loyal National League to campaign for the abolition of slavery, and they led it in the largest petition drive in U.S. history up to that time. They started a newspaper called The Revolution in 1868 to work for women's rights.