It's International Women's Day today, so let's take a look at this map from Lizzie Malcolm and LUSTlab via The Guardian which demonstrates how women's voting rights and roles in the political process of countries around the world have changed over time. 

For instance, this is the (bleak) state of the world regarding women's right to vote in 1892:

By 1950 women had the right to vote in far more countries, though not in a large swath of Africa:

And in 2012 women's suffrage is still not universal, but it's a lot better: 

Explore the rest of the map, which also examines when female politicians got the right to stand for election and when the first women were elected, here. Clicking on each country also reveals more data: