It's an example of allusion, because it alludes to the language in the Emancipation Proclamation.
Try and remember it this way. Cause and effect. Effect is the result of something, while affect is like it influenced something.
The verb form that is used to indicate present perfect tense is have + verb - ed.
For example:
I <u>have painted </u>a beautiful painting.
Actually, colleen isn't a Latin word.
