On December 31, the world learns of the existence of the one who is not yet named Covid-19. The rest, we know it. What events led to the appearance of Sars-CoV-2? Where does this virus come from, which to date has killed more than 3.6 million (6 million, according to the WHO) and brought the planet to its knees? Knowing the origins of the Covid would probably also prevent this dramatic scenario from happening again. From Chinese smokescreens to Trumpist fake news, the mystery remains unresolved, eighteen months after the emergence of Sars-CoV-2. Zoonotic origin, with a virus passed from bats to humans, perhaps through an intermediary? Laboratory accident in Wuhan, the world capital of coronavirus research?