If I had a time machine:
Rosa Parks,
Karl Marx,
Gandhi,
Sylvia Christabel and Emmeline Pankhurst,
William Blake,
Bob Marley,
Che Guevara,
Leon Trotsky,
George Orwell,
Rosa Luxemburg, Frederick Engels,
Eleanor Marx,
Vladimir Lenin
If I didn't have a time machine
Evo Morales,
Maya Angelou,
Alice Walker,
The Clash,
Tymon Dogg,
Juliet Gellatley,
Aung San Suu Kyi, and all the people who make the world go round.