From Wuhan to a global catastrophe: One year of the coronavirus pandemic

When an unknown virus was discovered in a Wuhan market, few could have predicted it would change the world. 

But the disease we now know as Covid-19 has spread across the globe at terrifying speed, presenting humanity with an unprecedented challenge. 

One year after the World Health Organization declared the coronavirus to be a pandemic, we look back at the events that have shaped the global crisis. 

Covid one year timeline