The given statement is an example of a phrase, specifically, a participial phrase. The element that is necessary to complete the sentence is an independent clause. A participial phrase consists of words with the -ing or -en form plus its modifiers. This kind of phrase always functions as an adjective. The phrase "Beginning in the fall of 1957" is describing a certain noun, which is found in the independent clause.
Micaiah is one of the four disciples of Elijah. He told the prophesy that the battle Ahab wanted to enter would end poorly for Ahab. Sure enough Ahab dies in the battle.
That would be a practical exercise. Practical means the actual doing or use of something rather than with theory and ideas. So it would apply to real life situations.
Hope this helps!
