BORE´UM, BORI´ON(Βόρειον ἄκρον).
1. （ Ras Teyonas), a promontory on the W. coast of Cyrenaica, forming the E. headland of the Greater Syrtis, and the W. boundary of the Cyrenaic Pentapolis, being a little SW. of Hesperides or Berenice. (Strab. 17. p. 836; Plin. Nat. 5.4.; Ptol. 4.4.3; Stadiasm. p. 447, where the error of 700 for 70 is obvious; Barth, Wanderungen, &100. p. 365). Adjacent to the promontory was a small port; but there was a much more considerable sea-port town of the same name, further S., which was inhabited by a great number of Jews, who are said to have ascribed their temple in this place to Solomon. Justinian converted the temple into a Christian church, compelled the Jews to embrace Christianity, and fortified the place, as an important post against the attacks of the barbarians ( Itin. Ant. p. 66; Tab. Peut. ; Stadiasm. l. c.;Procop. Aedif. 6.2). The exact position of this southern Boreum is difficult to determine. (Barth, l. c.SYRTES.）
2. （ Pt. Pedroand North Cape), the northern headland of the island of Taprobane ( Ceylon) opposite to the promontory of Cory, in India. (Ptol. 7.4.7: Marc. Heracl. p. 26.) [P.S]