Property:Has earliest known date

This is a property of type Date. It represents the earliest known date that an entity existed. This is not necessarily the same as the first date that it existed, which might be unknown. If the exact start date is known, use Has definite start date instead. It can be used for these entities:

• Units in Template:Unit
• Events in Template:Event
• Command relationships in Template:Command relationship subobject
• Personnel relationships in Template:Personnel subobject
• Locations in Template:Location subobject

See Help:Dates for more information on how to enter dates.