The reasons for indefiniteness in determination usually lie in the failure of ancient authors to give sufficient or characteristic descriptions.
We discuss this work at some length in the Appendix B on Ancient Authors.
The Theophilus mentioned might be the metal-working monk of the 12th Century, who is further discussed in Appendix B on Ancient Authors.
Indeed the name of grammarian (grammaticus) is frequently applied by ancient authors(63) to those whom we should now term critics and commentators, rather than grammarians.
After this he should inform his parents of the fact, because it is the opinion of ancient authors that a marriage solemnly contracted in the presence of fire cannot afterwards be set aside.
Longinus has observed, [2] that there may be a Loftiness in Sentiments, where there is no Passion, and brings Instances out of ancient Authors to support this his Opinion.
For this Reason the Works of Ancient Authors, which are written in dead Languages, have a great Advantage over those which are written in Languages that are now spoken.
Hitherto there is no intimation in ancient authors of the price of silk at Rome; in the time of Aurelian, however, that is towards the end of the third century, we learn the high price at which it was rated, in an indirect manner.
Though glass continued long to be held in high estimation, particularly at Rome; and though many kinds of glass-ware are mentioned in ancient authors, among costly pieces of furniture, mirrors are mentioned only among articles of silver plate.
Till the countries where it was procured be described by travellers who unite a knowledge of antiquities with skill in mineralogy, the species of this earth, mentioned in the works of ancient authors, cannot be distinguished with accuracy.
Some circumstances however related by ancient authors make it probable that Antioch, Rome and a few other cities had public lanterns, if not in all the streets, at least in those which were most frequented.
Of this we have but few remains, and we are obliged to take our ideas of its excellence from the descriptions of ancient authors.
The bigotry or fear of the church, which induced it to corrupt the works of ancient authors, led it also to wage an exterminating war against those profane productions which it could not satisfactorily answer.
A complaint, which occurs in ancient authors, is also prevalent, that the roots are often destroyed by mice.
Other games are represented in the paintings, but not in a manner to render them intelligible; and many, which were doubtless common in Egypt, are omitted both in the tombs, and in the writings of ancient authors.
The most interesting discoveries at Pompeii are those which throw light on, or confirm passages of ancient authors.
Learned men, occupied with history or with the interpretation of ancient authors, are liable to grave mistakes when they content themselves with the first testimony they may happen to light upon in a botanical work.
Ancient authors found it at Elisabethpol and Erivan, according to Ledebour.
No positive proof is found in ancient authors of the use of this plant by the Greeks and Romans;[421] but it is probable that they made use of it and several other Cichoria.
The fragments of Lucilius, and the notices about him in ancient authors, prove that in these respects Horace followed in his footsteps.
The various secret preparations of opium which have been extolled as the discovery of modern days, may be recognised in the works of ancient authors.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "ancient authors" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.