The following are the criteria for the 2012 season (unchanged since 2009).
She had left this part of the house unchanged since the old man's time.
The line and number of stations remains unchanged since 2003.
The name is historically unchanged since at least the 18th century.
The coat of arms used today is virtually unchanged since 1502.
The structure of the village is largely unchanged since the 1950s.
The process used today is virtually unchanged since the 1850s.
The interior is more or less unchanged since the construction in the 1740s.
The core teams have been unchanged since the 2008-09 series.
She passed old farms that looked unchanged since the time her father had lived out here.
