sentences:  In 2020, an outbreak of the COVID-19 virus first documented in 2019 in Wuhan, China spread to other countries becoming a global pandemic which saw major socio-economic disruption all over the world, the likes of which had not been seen since the early (The Great global flu pandemic in 1918-19) and first half of the 20th century (WWII which ended in 1945).Many countries ordered mandatory lockdowns on movement and closures of non-essential businesses.It was described by some commentators as the biggest event in world history in the 21st century, new millennium and recent memory of world history.