New Zealand was the first self-governing country in the world to grant women the right to vote in 1893.

Susan B. Anthony, Elizabeth Cady Stanton, and Carrie Chapman Catt were all prominent leaders of the women's suffrage movement in the United States.

The 19th Amendment to the U.S. Constitution, ratified in 1920, granted women the right to vote.

Finland was the first country in Europe to grant women the right to vote in 1906.

The Women's Social and Political Union (WSPU) was founded by Emmeline Pankhurst in 1903 to campaign for women's suffrage in the United Kingdom.

Switzerland was the last country in Europe to grant women the right to vote in 1971.

Jeannette Rankin was the first woman to be elected to the U.S. Congress in 1916.

Sri Lanka was the first country in the world to elect a female head of government in 1960.

Sandra Day O'Connor was the first woman to serve on the U.S. Supreme Court, appointed in 1981.

Rwanda has the highest percentage of women in parliament, at 61.3%.

The Women's Movement is the global movement that seeks to promote gender equality and women's empowerment.

The Convention on the Elimination of All Forms of Discrimination against Women (CEDAW) is considered a landmark achievement in the fight for gender equality.

UN Women is the United Nations agency that is dedicated to promoting gender equality and women's empowerment.

Yemen has the highest gender inequality index, according to the United Nations Development Programme (UNDP).

International Women's Day is the annual event that celebrates the achievements of women and raises awareness about gender equality.