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A cascading failure in Ontario's power grid triggered a massive blackout that pl
Featured Event 1965 Event

November 9

Northeast Blackout Strikes: Grid Vulnerability Exposed

A cascading failure in Ontario's power grid triggered a massive blackout that plunged ten U.S. states and parts of Canada into darkness for up to thirteen hours. This event forced utilities across North America to overhaul their transmission protocols, leading to the creation of regional reliability councils that prevent similar widespread outages today.

November 9, 1965

61 years ago

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What Else Happened on November 9

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