Hearing the acquittal of George Zimmerman in 2013 punched Alicia Garza in the gut. Seeking relief, she pulled out her phone at an Oakland bar. She only got more upset as she read racist messages on her Facebook newsfeed “blaming black people for our own conditions.” Garza, a domestic workers’ advocate, composed a love note for Black people, pleading with them to ensure “that black lives matter.” Her friend in Los Angeles, anti-police-brutality activist Patrisse Cullors, read Garza’s impassioned love note on Facebook and tacked a hashtag in the front. Their tech-savvy friend, immigrant rights
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