The movement in the 20th century that aimed to secure women's rights, especially the right to vote, was the suffrage movement. This movement gained momentum in the late 19th and early 20th centuries, advocating for women's legal rights, particularly the right to participate in elections. Key organizations, such as the National American Woman Suffrage Association (NAWSA), worked tirelessly to promote the cause through rallies, lobbying, and protests. The movement culminated in the passage of the 19th Amendment in 1920, which granted women the right to vote in the United States, marking a significant victory for gender equality.