CNN)The majority of the world's most powerful and influential positions remain in men's hands. But the imbalance is gradually tilting — and it shows. In 2015, some of the biggest news and successes resulted from the actions of women.
Here are my nominees for women who changed the world in 2015. But, before we get started, I want to mention some women who have been on my lists in previous years as they continue to shape our world.
Hillary Clinton made strides in her historic quest to become the first female president of the United States, German Chancellor Angela Merkel showed she is the undisputed strategic and moral leader of the European Union, Janet Yellen brought an end to nine years of zero-interest rates instituted since the Great Recession, and female Kurdish warriors proved an inspiring and effective counterforce against ISIS.