Topic, Place, and Time Period

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Topic, Place, and Time Period Notes for
Discussion Michael Buckland Library of
Congress, February 11, 2005.
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Example Moving between two media types, both
digital. Text
Social datasets It
is difficult to move between different kinds of
document e.g. Dataset of social statistics and
passages of text. You cannot use text to search
among numbers -- or numbers to search texts.
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Text TOPIC
LIST Captions Social datasets
Different media types on the same topic can
be linked indirectly via topical metadata, but in
this case you need to specify place also.

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Text TOPIC
LIST Maps GAZETTEER Captions Social
datasets Normalizing place names
requires a gazetteer -- and latitude and
longitude allow points on maps. But the time
period is also needs to be specified . . .
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BIOG. DICT.
Text TOPIC LIST Maps GAZETTEER Capti
ons Social datasets TIME
PERIOD DIRECTORY Timeline
Chronology Similarly with personal names . . .
etc.
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BIOG. DICT. 2 BIOG. DICT. TOPIC
LIST 3 Text 2 TOPIC LIST
2 Text TOPIC LIST Maps GAZETTEER Captions
Social GAZETTEER 2 etc datasets
GAZETTEER 3 TIME PERIOD DIRECTORY
Time line TIME PERIOD DIRECTORY 2
Chronology TIME PERIOD DIRECTORY 3 Many
resources exist . . . and many for normalizing
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1 Examples of chronological subdivisions (6XXy)
           Chronological subdivisions (y) 1
Roman period, 55 B.C.-499 A.D. 2 Wars of the
Roses, 1455-1485 3 Middle ages, 600-1500 4
Cultural Revolution, 1966-1976 5 1918-1945 6
1929
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2 Examples of chronological subdivisions under
the subject heading United State-History
            1 Colonial period, ca. 1600-1775 2
Revolution, 1775-1783 3 Civil War,
1861-1865 4 Confederation, 1783-1789 5 War
with Mexico, 1845-1848 6 World War, 1914-1918
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Table 2 Main subject headings with "Civil war"
as chronological subdivision Main subject
heading Chronological subdivision Great Britain  
              Civil war, 1642-1649 United
States Civil war, 1861-1865 Spain Civil war,
1936-1939 China Civil war, 1945-1949 Nigeria
Civil war, 1967-1970
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BIOG. DICT. 2 BIOG. DICT. TOPIC
LIST 3 Text 2 TOPIC LIST
2 Text TOPIC LIST Maps GAZETTEER Captions
Social GAZETTEER 2 etc datasets
GAZETTEER 3 TIME PERIOD DIRECTORY
Time line TIME PERIOD DIRECTORY 2
Chronology TIME PERIOD DIRECTORY 3 Many
resources exist . . . and many for normalizing