Michelle Obama's long journey to the White House is a story spanning five generations

Former First Lady Michelle Obama's family sure has come a long way in five generations. American filmmaker andSelma director Ava DuVernay shared a compelling tweet paying tribute to the former First Lady's great-great-great grandmother, Melvinia "Mattie" Shields McGruder, who was born a slave in South Carolina in 1844. SEE ALSO: Michelle Obama wished Barack Obama a happy birthday with some absolutely adorable throwback picsBecome your ancestor's wildest dream. pic.twitter.com/4xvyBZauwY —