Slavery caused a great impact in the evolution of history. Slavery was the cause of many wars and disruptions along the time line that dates to the present twenty-first century. People of color were deprived of having a life of their own and going about normal ways because of the greed that consumed society. The role of slavery in society attributed to the desperation and anger the slaves felt and lead them to strike against their owners in many occasions. Despite the threats and the unfair treatment, many people of color retaliated and firmly stood up for their rights as equal human beings. It was absurd how society based their government on religion at one point and still managed to dispossess people of color of their rights as an equal human being in the eyes of God. Unfortunately, there were more failures than victories in this sense yet a good example of a successor was John P. Parker. In the autobiography of Parker, His Promised Land, he illustrates the life he lived as a slave and how he achieved freedom through his own hard work and initiative also helping grant freedom to others through the famously known Underground Rail Road. To his luck he was sold when very young, about eight years old, to a family that showed him how to read, write, and manage a section of their business in Mobile, California. There he had actual earnings and put together enough money to go on, on his own. He proves to be a strong willed person who cared dearly for his people risking all he had for the freedom of his own kind. Parker took pride from what race he was from because of the acknowledgement that they were all such strong people and united.