Template documentation(for the above template, sometimes hidden or invisible)
This template behaves in the same manner as Template:Td, except it includes the word "Closed". Use it for the "Status" parameter of data tables to note what date a roller coaster closed. In cases where the closing date is uncertain (for example, "Closed 1987 or earlier"), don't use this template, instead write the date manually. For cases where the closing date isn't known at all, don't use this template, just write "Closed".
Template for indicating closing date in a table.
Numeric date, such as "20180719", "201807" or "2018". On year pages, the year may be left out so July 19th would be "0719" and July is "07"