an explanatory essay tries to explain a concept, or problem without trying to discredit or mention another writing piece, or article. an argumentative essay takes an article or piece of writing and has detailed facts, or reasons as to why that article is wrong.
The achievements were that it managed to raise its own army and create its own currency and government. The failures were that it didn't manage to become internationally recognized, and they eventually became bankrupt. Another thing was that there was a lot of internal strife and division.
According to Herodotus, the Phoenician prince Cadmus was accredited with the introduction of the Phoenician alphabet—phoinikeia grammata, "Phoenician letters"—to the Greeks, who adapted it to form their Greek alphabet.
Filled with tourists, the Queen Sun set sail. Fortunately, without incident for St. Kitts.