This section is from "The American Cyclopaedia", by George Ripley And Charles A. Dana. Also available from Amazon: The New American Cyclopędia. 16 volumes complete..
Abyla, one of the pillars of Hercules, at the N. W. extremity of Africa, opposite Calpe (now Gibraltar) in Spain, the other pillar. It was believed by the ancients to have been formerly joined with Calpe, but separated by Hercules, giving entrance to the Mediterranean.
 
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