"Women are far more visible in sports today than at any previous point in history," says UN Women in a statement. Yet the pace of change is so slow that it will take "a long journey" to reach pay parity at the top level, experts say. "We are making progress, but it is happening at a glacial pace," says Fiona Hathorn, managing director of advocacy group Women on Boards. "The sport world is very, very male dominated still and the disparities in some sports are shocking."

Most women and girls around the world either have experienced or will experience harassment in public spaces, statistics show - and public transport is a hotspot for these abuses, from whistling and vulgar comments to sexual touching and assault. Different solutions have been implemented around the world to tackle the problem.

Gender bias is rife in primary school learning books and can be found, in a strikingly similar form, on every continent, various experts say. It is a problem "hidden in plain sight".