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referendum

(Encyclopedia)referendum, referral of proposed laws or constitutional amendments to the electorate for final approval. This direct form of legislation, along with the initiative, was known in Greece and other early...

Valerian, Roman emperor

(Encyclopedia)Valerian (Publius Licinius Valerianus) vəlērˈēən [key], d. after 260, Roman emperor (253–60). He held important posts, both civil and military, under the emperors Decius and Gallus. After the s...

poison hemlock

(Encyclopedia)poison hemlock, lethally poisonous herbaceous plant (Conium maculatum) of the family Umbelliferae (parsley family). It has rank, finely divided foliage, flat-topped clusters of small white flowers, an...

portico

(Encyclopedia)portico pôrˈtĭkō [key], roofed space using columns or posts, generally included between a wall and a row of columns or between two rows of columns. In Greece the stoa was a portico of the first ty...

Macedon

(Encyclopedia)Macedon măsˈədŏn [key], ancient country, roughly equivalent to the modern region of Macedonia. In the history of Greek culture Macedon had its single significance in producing the conquerors and a...

North Atlantic Treaty Organization

(Encyclopedia)North Atlantic Treaty Organization (NATO), established under the North Atlantic Treaty (Apr. 4, 1949) by Belgium, Canada, Denmark, France, Great Britain, Iceland, Italy, Luxembourg, the Netherlands, N...

Roman art

(Encyclopedia)Roman art, works of art produced in ancient Rome and its far-flung provinces. The continued striving after three-dimensional illusionist effects revealed in the various phases of painting was dup...

dithyramb

(Encyclopedia)dithyramb dĭthˈĭrăm [key], in ancient Greece, hymn to the god Dionysus, choral lyric with exchanges between the leader and the chorus. It arose, probably, in the extemporaneous songs of the Dionys...

chorus, in Greek drama

(Encyclopedia)chorus, in the drama of ancient Greece. Originally the chorus seems to have arisen from the singing of the dithyramb, and the dithyrambic chorus allegedly became a true dramatic chorus when Thespis in...

chariot

(Encyclopedia)chariot, earliest and simplest type of carriage and the chief vehicle of many ancient peoples. The chariot was known among the Babylonians before the introduction of horses c.2000 b.c. and was first d...