Ancient Geography, a cluster of islands to the west of the Land's End; opposite to Celtiberia, (Pliny); famous for their tin, which he calls conditum plumbum, formerly open to none but the Phoenicians, who alone carried on this commerce from Gades, concealing the navigation from the rest of the world, (Strabo). The appellation is from Cassiteros, the name for tin in Greek. Now thought to be the Scilly islands, or Sorlings, (Camden).

Cassius, Spurius, a renowned Roman general and consul, whose enemies accusing him of aspiring to royalty, he was thrown down from the Tarpeian rock 485 years before Christ; after having thrice enjoyed the consulship dignity, been once general of the horse under the first dictator that was created at Rome, and twice received the honour of a triumph.

Cassius Longinus, a celebrated Roman lawyer, flourished 113 years before Christ. He was so inflexible a judge, that his tribunal was called the Rock of the impeached. It is from the judicial severity of this Cassius, that very severe judges have been called Cassiani.

Cassius, Cainus, one of the murderers of Julius Caesar; after his defeat by Mark Antony at the battle of Philippi, he ordered one of his freedmen to put him to death with his own sword 41 years before Christ. See Rome.