1966: Maine Yankee Atomic Power Co. created.

1972: Commercial operation begins.

1980-82: Referendum to close Maine Yankee fails.

1987: Referendum to close Maine Yankee fails.

1989: Best production year (6.9 billion killowatt hours).

1994: Cracks discovered in steam generator tubes.

1995: Plant shut down most of the year during repairs.

1997: Board decided to close plant permanently.

1999: Sirens intended to warn residents of meltdown removed.

2000: Workers begin gutting some buildings.

2003: Reactor vessel removed and shipped by barge to South Carolina.

2004: Containment building brought down by explosives.

2005: Maine Yankee completes decommissioning.