CT1 service has not been substantially modified since its 1994 inception.

The aliens had also modified their tactics since the last attack.

Much of the 1000 building has been modified since 1986.

The design of the flag has been modified 26 times officially, since 1777.

Brentford's section has been modified several times since the late 19th century.

The attic has had its layout modified since the original construction.

The Pledge has been modified four times since its composition.

The company had gradually modified the engine since its creation.

It has been modified several times since completion, however.

The "island" and the courses of the river have been modified by several floods since 1868.