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Habash al-Hasib
(Encyclopedia) Habash al-HasibHabash al-Hasibhäbäshˈ äl-häsēbˈ [key], d. c.870, Arab mathematician and astronomer. Habash al-Hasib was born in what is now Mary, Turkmenistan, and worked in Baghdad.…Al-Khowarizmi
(Encyclopedia) Al-KhowarizmiAl-Khowarizmiäl-khōwärēzˈmē [key], fl. 820, Arab mathematician of the court of Mamun in Baghdad. His treatises on Hindu arithmetic and on algebra made him famous. He is…Yaqut al-Hamawi
(Encyclopedia) Yaqut al-HamawiYaqut al-Hamawiyäk&oomacr;tˈ äl-hämäwēˈ [key], 1179–1229, Arab geographer. Born in Byzantium, he was bought as a slave by a merchant, al-Hamawi. He was freed on the…rebec
(Encyclopedia) rebecrebecrēˈbĕk [key], one of the earliest forms of the violin. It was pear-shaped, had from three to five strings, and possessed a strident tone. Its use, which began in the 13th…Weizman, Ezer
(Encyclopedia) Weizman, EzerWeizman, Ezerāˈzər vītˈsmän [key], 1924–2005, Israeli military officer and politician, president of Israel (1993–2000), b. Tel Aviv. A nephew of Chaim Weizmann, he helped…Jerusalem
(Encyclopedia) JerusalemJerusalemjər&oomacr;ˈsələm, –zələm [key], Heb. Yerushalayim, Arab. Al Quds, city (1994 pop. 578,800), capital of Israel. East Jerusalem is also claimed by Palestinians as…Languages Spoken in Each Country of the World
Top of Page Source: Getty ImagesAccording to Ethnologue, 7,151 languages are spoken in the world today. The distinction between a language and a dialect can be a contentious topic, though. Just ask…Jewish liturgical music
(Encyclopedia) Jewish liturgical music, the music used in the religious services of the Jews. The Bible and the Talmud record that spontaneous music making was common among the ancient Jews on all…World's Tallest Buildings<sup class="fnr">1</sup>
The following table lists the tallest buildings in the world by height. The Burj Khalifa, completed in January 2010, tops the list. NOTE: This list includes only buildings.2 For towers, see World's…Twin Towers Stats
The twin towers of the World Trade Center were more than just buildings. They were proof of New York's belief in itself. Built at a time when New York's future seemed uncertain, the towers…