Template:LTP anni switch/doc

This template is used on the London transport Portal with Random subpage to force a particular biography to appear on a relevant anniversary date instead of a random biography. If no relevant anniversary date is in the list within the template, the switch will allow Random subpage to operate normally. The only parameter is the default to be used when a date match is not made:
 * When used in the Random subpage start parameter, set this to 1
 * When used in the Random subpage end parameter, set this to the highest numbered biography found at Portal:London transport/Selected biographies

Example: