Xavier Riddle travels back in time to meet heroes from the past - from Eleanor Roosevelt to Leonardo da Vinci. I am Maya Angelou I am Frederick Douglass I am Louis Pasteur I am Rachel Carlson I am Harriet Tubman Pt 1 I am Harriet Tubman Pt 2 I am Kate Warne I am Sir Arthur Conan Doyle I am Rosa Parks I am Thurgood Marshall I am Wilma Rudolph I am Jonas Salk I am Confuscius I am Sacagawea