 New York subways resumed limited services around 8 p.m. Full power was restored to New York City and Toronto on August 16.At the time, it was the world's second most widespread blackout in history, after the 1999 Southern Brazil blackout.The outage, which was much more widespread than the Northeast blackout of 1965, affected an estimated 10 million people in southern and central Ontario, and 45 million people in eight U.S. states.