(Encyclopedia) medicine, the science and art of treating and preventing disease.
Modern medicine, characterized by growing specialization and a complex diagnostic and therapeutic technology, faces…
(Encyclopedia) Enlightenment, term applied to the mainstream of thought of 18th-century Europe and America.
Centered in Paris, the movement gained international character at cosmopolitan salons.…
Painters, sculptors, and photographers
Read the brief and informative biographies of notable artists, from Pablo Picasso and Mary Cassatt to Vincent Van Gogh and Georgia O'Keeffe…
(Encyclopedia)
CE5
Incandescent lamp
CE5
Basic fluorescent lamp
lighting, light produced by artificial means to allow visibility in enclosures and at night. For stage lighting, see scene…
(Encyclopedia) Old Testament, Christian name for the Hebrew Bible, which serves as the first division of the Christian Bible (see New Testament). The designations “Old” and “New” seem to have been…
(Encyclopedia) IslamIslamĭslämˈ, ĭsˈläm [key], [Arab.,=submission to God], world religion founded by the Prophet Muhammad. Founded in the 7th cent., Islam is the youngest of the three monotheistic…
Biographies of U.S. representatives and senators from Pennsylvania Member Name Birth-Death ACHESON, Ernest Francis 1855-1917 ACKER, Ephraim Leister 1827-1903…
A chronology of Black history from the early slave trade through Affirmative Action
by Borgna Brunner 1600s • 1700s • 1800–1850 • 1850–1900 • 1900–1950 • 1950–present 1619 Photograph of…
(Encyclopedia) Jews [from Judah], traditionally, descendants of Judah, the fourth son of Jacob, whose tribe, with that of his half-brother Benjamin, made up the kingdom of Judah; historically,…
