Theodore Parker, a great orator of the mid-19th century, was a Unitarian clergyman who directed much of his oratory towards ecclesiastical and social reform. Parker challenged slavery and other social ills. As a volume in the Great American Orators series, the focus is on Parker's oratory and its effect on theology and the social structures of the mid-19th century. Biographical information pertains to those aspects of Parker's life that influenced and shaped his elocution and ideas. Parker's rhetoric and rhetorical techniques are examined. Three of Parker's important speeches are included, each with an introduction that places it in its proper context. This study will appeal to students of rhetoric, theology, and mid-nineteenth-century American religious history. The book is divided into two sections. The first concentrates on Parker's life, his role as an abolitionist, social reformer, and public order. Part Two scrutinizes three of Parker's most famous discourses. The author establishes Parker's place among mid-19th-century preachers.