As of now, the #ChallengeAccepted (open in new tab) hashtag has been used 3 million times on Instagram; this is not the first time the Challenge Accepted trend has appeared with black and white photos, in 2016 for cancer awareness, Since then it has been used to spread positivity. Once nominated, the woman in question posts the photo and nominates at least one other woman, who then does the same. Whether your feed is flooded with artistic black and white photos, you yourself have been nominated, or you are just very curious about what is going on, don't worry. I have all the answers and some background for you. Be prepared, there may be a lot of this in your feed over the next few days.

The New York Times spoke with PR manager Christine Abram about this recent trend: "Congresswoman Alexandria Ocasio-Cortez spoke out against Congressman Ted Yoho's sexist remarks against her in Congress last week The video (opens in new tab) may have sparked a spike in social media posts about feminism and women's empowerment". The earliest example of this trend seen on Instagram was by journalist Ana Paula Padlan.

The hashtag #womensupportingwomen is often used in conjunction with #ChallengeAccepted. The trend has received criticism since it went viral, with some comparing it to the recent "black square" trend (open in new tab).

As the trend continued, women moved away from posting their faces and started posting about black-owned businesses they appreciate (open in new tab), activities they care about, and important issues like the arrest of Breanna Taylor and the cop who killed her.

Other users also encouraged activism following this trend:

I really love this Hollywood charm of Katie Holmes:

I enjoyed this caption by Ava DuVernay: "This is cool for posting pictures I'm sure it's just an excuse to be cool, but whatever Janine Sherman Balois and Violet Nelson ask me to do, I always comply."

And there will be plenty more to come today.