Complex sentence: The "Columbian Orator" is an example of progymnasmata, containing examples for students to copy and imitate.When Fredrick Douglass was 12 he purchased a copy of the Columbian Orator.
Split into simpler sentences: The "Columbian Orator" is an example of progymnasmata, containing examples for students to copy and imitate. When Frederick Douglass was 12 he purchased a copy of the Columbian Orator.