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Callias, fl. 449 b.c., Athenian statesman

(Encyclopedia)Callias kălˈēəs [key], fl. 449 b.c., Athenian statesman; he was related to Cimon and also to Aristides. He distinguished himself at the battle of Marathon (490 b.c.) and was a three-time winner of...

Ahmed I

(Encyclopedia)Ahmed I äˈmĕd [key], 1589–1617, Ottoman sultan (1603–17), son and successor of Muhammad III to the throne of the Ottoman Empire. The chief event of his reign was the Treaty of Zsitvatorok (1606...

Syr Darya

(Encyclopedia)Syr Darya or Syrdarya both: sēr däryäˈ, –därˈyə [key], ancient Jaxartes or Yaxartes, Pers. Sihun, river, c.1,380 mi (2,220 km) long, flowing through Uzbekistan, Tajikistan, and Kazakhstan. On...

Izvolsky, Aleksandr Petrovich

(Encyclopedia)Izvolsky, Aleksandr Petrovich əlyĭksänˈdər pētrôˈvĭch ēzvôlˈskē [key], 1856–1919, Russian diplomat instrumental in fostering the Triple Entente with France and Great Britain. He rose in...

inoculation

(Encyclopedia)inoculation, in medicine, introduction of a preparation into the tissues or fluids of the body for the purpose of preventing or curing certain diseases. The preparation is usually a weakened culture o...

Arsaces

(Encyclopedia)Arsaces ärˈsəsēz [key], fl. 250 b.c., founder of the Parthian dynasty of the Arsacids, which ruled Persia from c.250 b.c. to a.d. 226. Arsaces led a successful revolt against Antiochus II of Syria...

Saffarid

(Encyclopedia)Saffarid säˈfärĭd [key], a dynasty of Sistan that flourished in the 9th cent., ruling (867–1495) in E Persia. Its founder, Yaqub ibn Layth, d. 879?, was a coppersmith who raised an army during a...

Sistan

(Encyclopedia)Sistan sā– [key], border lowland region of SW Afghanistan and E Iran, c.6,000 sq mi (15,540 sq km), fed mainly by the spring flood of the Helmand River and other streams. At low water, the region i...

Dura, ancient city, Syria

(Encyclopedia)Dura yo͝orōˈpəs [key], ancient city of Syria, E of Palmyra on a plateau above the Euphrates River. It is also called Dura-Europos or Dura-Europus. Founded (c.300 b.c.) by a general of Seleucus I, ...

Cagliostro, Alessandro, Conte di

(Encyclopedia)Cagliostro, Alessandro, Conte di älĕs-sänˈdrō kōnˈtā dē kälyōˈstrō [key], 1743–95, Italian adventurer, magician, and alchemist, whose real name was Giuseppe Balsamo. After early misadve...