Joe Biden became the first president to take part in remembrances of one of the darkest moments of racial violence in the US when he helped commemorate the 100th anniversary of the destruction of what was known as ‘Black Wall Street’ in Tulsa, Oklahoma. Biden’s visit, in which he grieved for the more than 300 Black people killed by a white mob, came amid a national reckoning on racial justice. And it will stand in stark contrast to his predecessor Donald Trump’s Tulsa visit last year, reports the Associated Press.