Key Facts About Women’s Suffrage Around the World, a Century After U.S. Ratified 19th AmendmentBut the United States was hardly the first country to codify women’s suffrage, and barriers to vote persisted for some groups of U.S. women for decades. At least 20 nations preceded the U.S., according to a Pew Research Center analysis of women’s enfranchisement measures in 198 countries and self-administering territories. Today, none of these 198 countries and territories bar women from voting because of their sex; some countries do not hold national elections.