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Fermat, Pierre de

(Encyclopedia)Fermat, Pierre de pyĕr də fĕrmäˈ [key], 1601–65, French mathematician. A magistrate whose avocation was mathematics, Fermat is known as a founder of modern number theory and probability theory....

Fernando de Noronha

(Encyclopedia)Fernando de Noronha fərnänˈdo͝o dĭ no͝orôˈnyə [key], group of 21 islands, c.10 sq mi (26 sq km), in the Atlantic Ocean, c.225 mi (360 km) off the northeast coast of Brazil. A federal territor...

Iturbide, Agustín de

(Encyclopedia)Iturbide, Agustín de ägo͞ostēnˈ dā ēto͞orbēˈᵺā [key], 1783–1824, Mexican revolutionist, emperor of Mexico (1822–23). An officer in the royalist army, he was sympathetic to independenc...

Iturrigaray, José de

(Encyclopedia)Iturrigaray, José de hōsāˈ ᵺā ēto͞oˈrēgäräˈē [key], 1742–1815, Spanish colonial administrator, viceroy of New Spain (1803–8). During his rule, all of Spanish America was disturbed b...

Iriarte, Tomás de

(Encyclopedia)Iriarte, Tomás de tōmäsˈ dā ēryärˈtā [key], 1750–91, Spanish poet and dramatist, b. Canary Islands. He spent most of his life in Madrid, where, like many of his contemporaries, he engaged i...

Institut de France

(Encyclopedia)Institut de France ăNstētüˈ də fräNs [key], cultural institution of the French state. Founded in 1795 by the Directory, it replaced five learned societies that had been suppressed in 1793 by the...

Ibarbourou, Juana de

(Encyclopedia)Ibarbourou, Juana de hwäˈnä dā ēbärbo͞oˈro͞o [key], 1895–1979, Uruguayan p...

Ibarra, Francisco de

(Encyclopedia)Ibarra, Francisco de fränthēsˈkō ᵺā ēbäˈrä [key], 1539?–1575, Spanish conquistador in Mexico. In 1554, after founding Fresnillo, he headed an expedition to the N of Zacatecas. For the nex...

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