Biggest power blackouts in U.S. history?

[Ranchoth]

The big Northeastern blackout a few months ago would seem to be pretty high up on the list, but there were a couple of fairly major blackouts on the west coast a few years back that stretched from Canada to Mexico. (Not that I can recall the exact dates.)

Have there ever been any other blackouts that got near the scale of those mentioned above? If so, when were they, and how widespread were they?

[Desmostylus]

Big Blackouts in U.S. History

The Great Northeast Blackout of 1965: After a relay failure, more than 80,000 square miles of the northeastern United States and parts of Canada lost power, turning the lights out on 30 million people.

The New York Blackout of 1977: One hot night in July, multiple lightning strikes knocked out power to the entire city of New York, leaving 8 million people without light or air conditioning. The blackout triggered mass looting and arson across much of the city.

The Northwestern Blackout of 1996: Transmission lines sagged into some trees, causing an electrical short that knocked out power to more than 4 million people in Oregon, California and other western states.

The Blackout of 2003: Cities across the midwestern United States, northeastern United States and southern Canada lost power, apparently due to a problem with a series of transmission lines known as “The Lake Eerie Loop.” Roughly 50 million people lost power.

[Desmostylus]

P.S. before that time, the states weren’t heavily interconnected. So whilst a blackout may have taken down a state, it wouldn’t take the adjoining states out with it.

[Ranchoth]

Danke.