Completed the following sentence: The city attracted international attention in 2003 when it became the center of a major Severe acute respiratory syndrome (SARS) outbreak. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️
massive blackout which affected millions of Torontonians (it also affected most of Southern Ontario and parts of the United States), stranding some hundreds of people in tall buildings, knocking out traffic lights and suspending subway and streetcar service across the city during those aforementioned days.