John Wesley called for a world in which no one was forced to go against his conscience or to serve against his will.

A runaway slave is recaptured, and charged with ingratitude by the master who has taken such pains to afford him economic security.

John Wesley wrote to a young William Wilberforce to encourage him in his campaign against the slave trade.

Four years before the bloody American civil war, Dr David Livingstone proposed a peaceful way to rid the world of slavery.