As states look to restrict the teaching of race, gender identity and sexuality, social media content creators have stepped in to fill the gap. Platforms like TikTok and Instagram have become an alternative resource to share histories that many never learned about in school. Jay Colby, a 29-year-old Houston resident, runs one of those accounts. In 2020, Colby started Black History Unlocked, an Instagram account that delves into the contributions, inventions and struggles of Black people around the world. “We try to cover Black history from all different viewpoints and not just one time period or one country,” Colby told...