Kenya: Frederick Douglass, an African American social reformer of the 19th century who made history by successfully escaping from slavery to begin the protracted agitation for the abolition of slave trade, once told the following story:
“I once passed a coloured woman at work on a plantation who was singing ... and whose general manners would have led me to set her down as the happiest of the gang. I said to her, ‘Your work seems pleasant to you.’ She replied, ‘No, massa.’