#BBCtrending: Five facts about #BringBackOurGirls

The hashtag #BringbackourGirls has become a huge global phenomenon after the abduction of more than 200 schoolgirls in Nigeria. Here are five facts about the trend.

1. When did it start?

TEXT: First used in Nigeria, 23 April 2014 IMAGE: A woman with her head bowed at a rally for he missing girls in Nigeria

2. How many times has it been used on Twitter?

TEXT: Total tweets - 3.3 million. IMAGE: A woman holds out a stick at a rally for the missing girls in Washington, DC

3. Where is it being used?

TEXT: Top countries: Nigeria 27%, US 26%, UK 11% TEXT: A sign saying "#BringBackOurGirls" on a tree in London

4. Who is using it?

TEXT: 56% women, 44% men IMAGE: A woman holds a candle at a rally for the missing girls

5. Most shared tweet?

TEXT: Most retweeted, 57,000, First Lady Michelle Obama IMAGE: Michelle Obama tweets a picture of herself highlighting the #BringBackOurGirls campaign

Images courtesy of Getty Images, Reuters, AP and @FLOTUS/Twitter

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