In technical terms, the first wave of feminism could be dated earlier to include pre-nineteenth century women's rights movements. In particular, the French Revolution of 1789 is often attributed as the beginning of the first demands for women's rights. This went on to inspire Mary Wollstonecraft, whose book "A Vindication of the Rights of Women" was published in 1792. It is widely recognized as one of the earliest significant works of feminist literacy. However, first wave feminism is usually dated as occurring between the mid to late nineteenth century and early 1900s. During the first wave, women began to realize that they must first gain political power before they could bring about social change. This wave focused on gaining the right to vote (universal suffrage). Later, the focus shifted to include sexual, economic, and reproductive concerns.