Which event marked the beginning of the women’s suffrage movement in the United States?

The Seneca Falls Convention, held in 1848, is regarded as the pivotal event that marked the beginning of the women's suffrage movement in the United States. This convention brought together activists who were seeking equal rights for women, including the right to vote. It resulted in the "Declaration of Sentiments," which outlined the grievances women faced and called for equal treatment in various aspects of society, particularly emphasizing voting rights.

This event sparked greater public awareness and activism regarding women's rights, setting the stage for future movements and efforts towards achieving suffrage. The gathering is often credited with galvanizing the women’s rights movement as a whole, making it a significant historical milestone.

Other choices represent later developments in the women's rights movement but do not signify its inception. The Equal Rights Amendment was proposed in 1923 and was designed to guarantee equal legal rights for all American citizens regardless of sex but was not the starting point of the movement. The ratification of the 19th Amendment in 1920 was a major achievement but was the result of decades of advocacy that commenced with early events like the Seneca Falls Convention. The establishment of the National Organization for Women in 1966 represents an important organization within a modern context of the feminist movement but is