International Women's Day is a day for the world to stop and think about all of the wonderful achievements of women and how much they have contributed to the world, thus enabling the progress of humanity. Among those achievements are some of the most transformative inventions, without which the world would be a very different place. Here are 10 of the biggest and best things that were invented by women that you may not know about. Remember - when women are strong, the world is strong. When women move forward, humanity moves forward.