The date before which the record should be displayed in the exhibit.
If you're working with NeatlineSimile: If a "Before Date" is defined, then the record will only be displayed on the map when the timeline is centered on a date that falls before this date. Again, imagine you're working with a record that's plotted as a point on the map. If you set "Before Date" to 2000
, then the point will disappear when you scroll the timeline forward to 2001, and reappear when you scroll back to 1999.
If both a "After Date" and a "Before Date" are defined, then the record will only be visible when the timeline is within the duration between the two dates. For example, if "After Date" is 2000
, and "Before Date" is 2010
, the record would be visible between those two dates, but not before 2000
or after 2010
. By stringing together collections of records with different after- and before-dates, it's possible to create complex time-series animations
Dates need to follow the ISO 8601standard:
CE Dates
1564
- The year 1564.1564-04
- April, 1564.1564-04-23
- April 23, 1564.1564-04-23T08:30
- 8:30 AM on April 23, 1564.1564-04-23T08:30:15
- 15 seconds after 8:30 AM on April 23, 1564.BCE Dates
-001563
- The year 1564 BCE.-000563
- The year 564 BCE.-000063
- The year 64 BCE.-000003
- The year 4 BCE. -001563-04
- April, 1564 BCE.-001563-04-23
- April 23, 1564 BCE.