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Cleomenes III

(Encyclopedia)Cleomenes III, c.260–219 b.c., king of Sparta (235–221 b.c.). He was probably the most energetic king Sparta ever had, a conscious imitator of Agis III (see under Agis). In his determined effort t...

Pereyaslav-Khmelnytskyy

(Encyclopedia)Pereyaslav-Khmelnytskyy pĕrˈĕyəsläfˈ-khmĭlnyĭtˈskē [key], town, in Ukraine, on the Trubezh River. It was known in 907 and served as the fortified capital of the duchy of Pereyaslavl (11th–...

poll tax

(Encyclopedia)poll tax, a capital tax levied equally on every adult in the community. Although no longer a significant source of revenue for any major country, the poll tax did provide large sums for many governmen...

Plessy v. Ferguson

(Encyclopedia)Plessy v. Ferguson, case decided by the U.S. Supreme Court in 1896. The court upheld an 1890 Louisiana statute mandating racially segregated but equal railroad carriages, ruling that the equal protect...

Pribilof Islands

(Encyclopedia)Pribilof Islands prĭbˈĭlŏfˌ [key], group of four volcanic islands, off SW Alaska in the Bering Sea, c.230 mi (370 km) N of the Aleutian Islands; explored and named in 1786 by Gerasim Pribilof, a ...

Bolsonaro, Jair Messias

(Encyclopedia)Bolsonaro, Jair Messias, 1955–, Brazilian political leader. Bolsonaro served in the army from 1973 to 1988, mostly during a period of military dictatorship; he rose to the rank of captain. Running a...

mass extinction

(Encyclopedia)mass extinction, the extinction of a large percentage of the earth's species, opening ecological niches for other species to fill. There have been at least ten such events. The five greatest were thos...

French Guiana

(Encyclopedia)CE5 French Guiana gēănˈə, –änˈ– [key], Fr. La Guyane française, officially Department of Guiana, French overseas department (2015 est. pop. 269,000), 35,135 sq mi (91,000 sq km), NE Sout...

Iran-contra affair

(Encyclopedia)Iran-contra affair, in U.S. history, secret arrangement in the 1980s to provide funds to the Nicaraguan contra rebels from profits gained by selling arms to Iran. The Iran-contra affair was the produc...

Federal Bureau of Investigation

(Encyclopedia)Federal Bureau of Investigation (FBI), division of the U.S. Dept. of Justice charged with investigating all violations of federal laws except those assigned to some other federal agency. The FBI has j...