On May 25 2020, 46-year old George Floyd died after being restrained by police in Minneapolis, who held him down and pressed a knee to his neck.
In footage posted online, Mr Floyd, a black man, could be heard telling the officers that he could not breathe and calling out for his mother for eight minutes.
The incident sparked global outrage and led to both violent and non-violent protests in a movement that became known as Black Lives Matter (BLM).
Over the next few months, millions of people gathered in cities across the world to march in support of the BLM movement.
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