On May 21, 1851, slavery was abolished in Colombia, South America. By: Redactor Treason! Mill and Passy Leave a Reply Cancel reply Your email address will not be published. Required fields are marked * Name * Email * Website 4 + six = Comment You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong> Notify me of follow-up comments by email. Notify me of new posts by email.