Annual campaign
The Global 16 Days Campaign is an international campaign to challenge violence against women and girls. The campaign runs every year from 25th November, the International Day for the Elimination of Violence against Women, to 10 December, Human Rights Day. 
Originally called the "16 Days of Activism Against Gender Violence" campaign, it was initiated in 1991 by the first Women's Global Leadership Institute, held by the Center for Women's Global Leadership (CWGL), at Rutgers University.
Since 1991, more than 6,000 organizations from approximately 187 countries have participated in the campaign.
Themes.
Every year, the 16 Days of Activism Against Gender-Based Violence Campaign either introduces a new theme, or continues an old theme. The theme focuses on one particular area of gender inequality and works to bring attention to these issues and make changes that will have an impact. The Center for Women's Global Leadership sends out a "Take Action Kit" every year, detailing how participants can get involved and campaign in order to make a change.
References.
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