An alias is a false name, not a false description or personation: His real name was John Smith but he ran his business under the alias of Joe Bloggs. An alibi is properly a statement that a person was somewhere else at the time a crime was committed: His alibi was supported by his sister, who had been visiting him that evening. It can also be used of a general excuse: My alibi is that the train was late. However, this is thought unacceptable by some people.
The Pillars of Hercules represent the promontories of Gibraltar and Ceuta. The shield represents the regions of Castile, Léon, Aragón, Navarre, and Granada. Effective date: 18 December 1981.