Black-and-white photos of women flooded Instagram in mid-July with the hashtag #ChallengeAccepted. So far, more than 6 million women have posted pictures using the hashtag and that number continues to increase. 

The trend, originally from a 2016 challenge to raise cancer awareness, reappeared with a new purpose this past month — a reminder of the femicide rates in Turkey and the importance of the Istanbul Convention, which was signed in 2011 to take measures that would prevent violence against women, protect victims and prosecute the perpetrators.