A sentence fragment is a group of words that looks like a sentence, but actually isn’t acomplete sentence. Sentence fragments are usually missing a subject or verb, or they do not express a complete thought. While it may be punctuated to look like a complete sentence, a fragment cannot stand on its
Therefore it is a fragment sentence as it does not make sense on it's own even if it is punctuated properly.
Some sources will state historic events, however if they were written a long time AFTER the events happen it is not credible because the person who wrote the source was not present at the time of the event.
