Answer:
It's important to understand the breadth of history at hand.
Learning about the history of black oppression and police violence can help you understand the severity of the issue, and how ingrained racial discrimination is in US society.
"I think people of goodwill who don't know our history really need to make up for lost time," Lieberman said. "Educating ourselves is so important."
Black Lives Matter is not a new fight — black organizers have always been advocating for change.
Layla F. Saad, an anti-racism educator, international speaker, and New York Times bestselling author, wrote about this in the Guardian:
"In order to understand what we are seeing on the news and experiencing in our lives, it's important to understand how history has shaped this moment. Reaching back to books published by black thinkers and feminists decades ago shows us (depressingly) how things are still very much the same, but also (empoweringly) gives us language and context for understanding what we are seeing now — and therefore the ability to disrupt tactics of oppression that still operate today."