Biography Category
1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the ma...
(p l´´ gn ´t s) (KEY) , fl. c.460 B.C.–447 B.C., Greek painter, b. Thasos. He later became an Athenian citizen. He painted the Capture of Troy an...
(y hän´ s h v ´l s) (KEY) , 1611–87, Polish astronomer, b. Danzig. From a finely equipped observatory in his house at Danzig, assisted by his wi...
(yä´k p d l´lä kw r´chä) (KEY) , c.1374–1438, Italian sculptor. His work shows the transition from medieval to Renaissance art. He is especia...
(s g´fr d) (KEY) or Sigurd (s g´ rd) (KEY) , great folk hero of early and medieval Germanic mythology. His legend, important in several Germanic ep...
poison gas used in riot control and chemical warfare. It is highly irritating to the nose and throat; inhalation of the substance causes sneezing and ...