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LONDON -- Hundreds of girls in over 50 countries are Watch Sexy Tutoring Class Onlinetaking over top jobs in government, media, businesses and schools in celebration of the International Day of the Girl Child.

Teenage girls are stepping into leadership positions to call for greater gender equality and to demand equal opportunities for boys and girls.

According to Plan -- the charity behind the event -- the purpose of the takeover is "to demand a fair world where girls and boys have equal opportunities" and "to celebrate the power of girls and highlight the barriers they face".

International Day of the Girl Child is an annual event which aims to raise awareness of child marriage; something which affects one in three girls under the age of 18 in developing countries.Over 250 girls around the world have assumed roles of mayors, editors, headteachers and business leaders as part of the event.In the UK government's Department for International Development (DFID) Tanzania, intern Neema has taken over the position of human investment team leader.

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Meanwhile, in Dublin, Ireland, 18-year-old Étáin Sweeney Keogh took over the lord mayor of Dublin's office.

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Sweeney Keogh also took over a radio show on Ireland's Newstalk radio station.

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In Switzerland, 17-year-old Jennie, from Sweden, took over the United Nation’s Geneva office.

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And, in Norway, 17-year-old Hanna Visnes assumed the role of chief editor at online newspaper Nettavisen.

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