18221900
18221900 is a compact notation used in historical, bibliographic, and archival contexts to indicate a time interval that runs from the year 1822 to the year 1900. When written with a dash as 1822–1900, it clearly marks a span; the fused form 18221900 is commonly found in cataloging codes, database keys, and shorthand indices where a concise date range is required.
The exact interpretation of 18221900 varies by discipline. In a research bibliography, it may delimit sources
Historically, the interval covers a period of rapid change: industrialization, urbanization, and the expansion of science
As a notational convention, 18221900 is not a formal historical era; scholars may adjust the bounds to