1856x -

In academic and historical databases, "1856x" frequently appears as a shorthand or specific cataloging mark for documents, periodicals, or legal cases originating in or related to the year 1856.

: This resolution was a common high-end standard for large CRT monitors (often 21 inches or larger). In academic and historical databases

: It was favored by graphic designers and engineers who required high vertical real estate before the industry-wide shift to 16:9 widescreen formats like 1080p. 2. Historical and Archival Identifiers In academic and historical databases