Human civilisation has produced countless great, powerful, and influential people, and though most of the famous ones at least are men, more than enough women join their ranks in the history books. On International Women's Day 2017, the women in this quiz demonstrate that gender is no barrier to achieving fame (or infamy) that can endure across centuries or even millennia. Some of them have done great things for humanity, some have held powerful titles and offices, and some have gained great prestige or damning notoriety. For each letter of the alphabet, there is at least one woman who has been influential in history or has left her mark on the world in some form... for better or for worse. How many can you name?