The BBC has revealed its list of 100 inspirational and innovative women for 2017.

This year, the women on the list were part of the 100 Women Challenge, tackling some of the biggest problems facing women around the world.

Coming together in four teams, the women shared their experiences and created innovative ways to tackle:

The glass ceiling - #Teamlead

Female illiteracy - #Teamread

Street harassment - #Teamgo

Sexism in sport - #Teamplay

You might notice something different this year; when the list was launched in September, there were still 40 spaces to be filled. As the season progressed, more women who had taken up the challenge in some way were added to the list.

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Photo credits: Dan Kennedy, Alma Recelle Aguilera, Nasa/Johnson, Stemettes/Phil Smyth, Tom Kavanagh, Nairobi Garage, Baljit Singh, Jaron Johns, Julia Ronai, Romina Bernado, Etiquette Magazine, Rockwool, Dami Oyetade, Resham, Jorge Zorrilla, Mahesh Abeysekara, Francis Kokoroko, Claudio Rietti, David Levenson, Fernanda Lem, SheFighter.

What is 100 Women?

BBC 100 Women names 100 influential and inspirational women around the world every year. In 2017, we're challenging them to tackle four of the biggest problems facing women today - the glass ceiling, female illiteracy, harassment in public spaces and sexism in sport.

With your help, they'll be coming up with real-life solutions and we want you to get involved with your ideas. Find us on Facebook, Instagram and Twitter and use #100Women