Hannibal B. Johnson, author of Black Wall Street 100: An American City Grapples with its Historical Racial Trauma, will present “Tulsa Race Massacre: Historical Through-Line” on Saturday, February 6 from 1:00–2:30 p.m. via the Zoom video conferencing app. All are welcome to attend this free lecture; registration is required.     Johnson will examine what happened in Tulsa, Oklahoma, in