Hundreds of millions of people worldwide kicked off the weekend under a coronavirus lockdown, as the global death toll accelerated sharply, and the World Health Organization warned young people they were "not invincible".
With borders slamming shut, schools and businesses closing and increasingly drastic restrictions on movement, tens of millions of people were hunkered down on March 17, heeding government calls to isolate themselves and slow the spread of the new coronavirus.
From Southeast Asia to Europe to the Americas, people found their lives upended by lockdowns and social distancing.
On Monday the TV was on as I waited for my detective series to start when suddenly the screen went black, and the news intro music started playing.
It was an emergency broadcast from Italy's Prime Minister Giuseppe Conte, addressing the nation about the extraordinary measures the government was taking to combat the new coronavirus.