Geography and History.—In the study of the earth the Arabians showed themselves to be practical and accurate geographers. They applied their mathematical and astronomical knowledge to the study of the earth, and thus gave an impulse to exploration. While their theories of the origin of the earth were crude and untenable, their practical writings on the subject derived from real knowledge, and the practical instruction in schools by the use of globes and maps, were of immense practical value.

Their history was made up chiefly of the histories of cities and the lives of prominent men. There was no national history of the rise and development of the Arabian kingdom, for historical writing and study were in an undeveloped state.

Discoveries, Inventions, and Achievements.—It cannot be successfully claimed that the Arabians exhibited very much originality in the advancement of the civilized arts, yet they had the ability to take what they found elsewhere developed by other scholars, improve upon it, and apply it to the practical affairs of life. Thus, although the Chinese discovered gunpowder over 3,000 years ago, it remained for the Arabs to bring it into use in the siege of Mecca in the year 690, and introduce it into Spain some years later. The Persians called it Chinese salt, the Arabians Indian snow, indicating that it might have originated in different countries. The Arab-Moors used it in their wars with the Christians as early as the middle of the thirteenth century. They excelled also in making paper from flax, or cotton, which was probably an imitation of the paper made by the Chinese from silk. We find also that the Arabs had learned to print from movable type, and the introduction of paper made the printing-press possible. Linen paper made from old clothes was said to be in use as early as 1106.

Without doubt the Arab-Moors introduced into Spain the use of the magnet in connection with the mariner's compass. But owing to the fact that it was not needed in the short voyages along the coast of the Mediterranean, it did not come into a large use until the great voyages on the ocean, in the beginning of the fourteenth century. Yet the invention of the mariner's compass, so frequently attributed to Flavio Giorgio, may be as well attributed to the Arab-Moors.

Knives and swords of superior make, leather, silk, and glass, as well as large collections of delicate jewelry, show marked advancement in Arabian industrial art and mechanical skill.

One of the achievements of the Arab-Moors in Spain was the introduction of agriculture, and its advancement to an important position among the industries by means of irrigation. The great, fertile valleys of Spain were thus, through agricultural skill, made "to blossom as the rose." Seeds were imported from different parts of the world, and much attention was given to the culture of all plants which could be readily raised in this country. Rice and cotton and sugar-cane were cultivated through the process of irrigation. Thus Spain was indebted to the Arab-Moors not only for the introduction of industrial arts and skilled mechanics, but the establishment of agriculture on a firm foundation.

Language and Literature.—The language of the Arabians is said to be peculiarly rich in synonyms. For instance, it is said there are 1,000 expressions for the word "camel," and the same number for the word "sword," while there are 4,000 for the word "misfortune." Very few remnants of the Arabic remain in the modern European languages. Quite a number of words in the Spanish language, fewer in English and in other modern languages, are the only remnants of the use of this highly developed Arabian speech. It represents the southern branch of the Semitic language, and is closely related to the Hebrew and the Aramaic. The unity and compactness of the language are very much in evidence. Coming little in contact with other languages, it remained somewhat exclusive, and retained its original form.

When it came into Spain the Arabic language reigned almost supreme, on account of the special domination of Arabic influences. Far in the north of Spain, however, among the Christians who had adopted the Low Latin, was the formation of the Spanish language. The hatred of the Spaniards for the Arabs led these people to refuse to use the language of the conquerors. Nevertheless, the Arabic had some influence in the formation of the Spanish language. The isolated geographic terms, and especial names of things, as well as idioms of speech, show still that the Arabian influence may be traced in the Spanish language.

In literature the Arabians had a marked development. The Arabian poetry, though light in its character, became prominent. There were among these Arabians in Spain ardent and ready writers, with fertile fancy and lively perception, who recited their songs to eager listeners. The poet became a universal teacher. He went about from place to place singing his songs, and the troubadours of the south of France received in later years much of their impulse indirectly from the Arabic poets. While the poetry was not of a high order, it was wide-reaching in its influence, and extended in later days to Italy, Sicily, and southern France, and had a quickening influence in the development of the light songs of the troubadours. The influence of this lighter literature through Italy, Sicily, and southern France on the literature of Europe and of England in later periods is well marked by the historians. In the great schools rhetoric and grammar were also taught to a considerable extent. In the universities these formed one of the great branches of special culture. We find, then, on the linguistic side that the Arabians accomplished a great deal in the advancement of the language and literature of Europe.

Art and Architecture.—Perhaps the Arabians in Spain are known more by their architecture than any other phase of their culture. Not that there was anything especially original in it, except in the combination which they made of the architecture of other nations. In the building of their great mosques, like that of Cordova and of the Alhambra, they perpetuated the magnificence and splendor of the East. Even the actual materials with which they constructed these magnificent buildings were obtained from Greece and the Orient, and placed in their positions in a new combination. The great original feature of the Mooresque architecture is found in the famous horseshoe arch, which was used so extensively in their mosques and palaces. It represented the Roman arch, slightly bent into the form of a horseshoe. Yet from architectural strength it must be considered that the real support resting on the pillar was merely the half-circle of the Roman arch, while the horseshoe was a continuation for ornamental purposes.