n Monday 11 May, Elon Musk attempted to fashion himself into a hero of the anti-public-health movement when he dared authorities to arrest him for restarting production at Tesla’s northern California car plant, in defiance of the local shelter-in-place order. Neither Musk nor anyone else was arrested, but his action placed state and local officials in the difficult position of figuring out whether and how to enforce coronavirus restrictions against a litigious billionaire who is also a major employer. On Tuesday, his cause gained the support of another hot-headed executive with an overactive Twitter account: Donald Trump. “California should let Tesla & @elonmusk open the plant, NOW,” the president tweeted on Tuesday morning. “It can be done Fast & Safely!” By Tuesday evening, Musk and the local government appeared to have reached a compromise. How did we get here? Here’s a handy timeline of what led up to Musk’s meltdown May: 6 March On the day that global confirmed cases of Covid-19 surpass 100,000, Musk declares on Twitter: “The coronavirus panic is dumb.” The tweet sets the tone for Musk’s approach toward the deadly pandemic, repeatedly downplaying the risk of the virus and opposing public health measures. 11 March The World Health Organization declares the coronavirus a pandemic. 16 March Six counties in the San Francisco Bay Area become the first locales in the US to order all non-essential businesses to close and require residents to shelter in place. Included in the coordinated public health order is Alameda county, home to Tesla’s only US car factory, in the city of Fremont. Musk emails his employees to say that he plans to continue working, signaling that he does not plan to shut the factory. On Twitter, Musk promotes chloroquine, an unproven treatment for Covid-19 that would become the darling of Fox News and Trump before being largely abandoned amid reports of dangerous cardiac side-effects. 17 March The Alameda county sheriff’s office announces that Tesla is not an essential business and therefore can only maintain “minimum basic operations” under the public health order. Tesla does not comply. 18 March Musk tweets that Tesla will manufacture ventilators “if there is a shortage”. There is no indication that Tesla ever took any steps to do so, though Musk tweets about having a “long engineering discussion” with the medical device maker Medtronic on 21 March. 19 March Under pressure from local officials, Tesla agrees to halt production at its Fremont factory by 23 March – a week after the public health order. On Twitter, Musk predicts that there will be “probably close to zero new cases” of Covid-19 in the US by the end of April. He also asserts falsely that children are “essentially immune” to the virus. California’s governor, Gavin Newsom, issues a statewide shelter-in-place order. 23 March Production at the Fremont factory stops. 31 March Musk tweets an offer to ship “FDA-approved ventilators” to hospitals. The devices turn out to be BiPap machines, which are commonly used to treat sleep apnea, rather than the much more expensive mechanical ventilators that hospitals use to intubate severely ill patients. Bay Area officials extend their shelter-in-place orders through 3 May. 26 April Musk promotes a YouTube video by two California doctors using misleading statistics to argue against shelter-in-place orders. The video is removed by YouTube for promoting harmful misinformation, and the doctors are “jointly and emphatically condemn[ed]” by the American College of Emergency Physicians and the American Academy of Emergency Medicine. 27 April Bay Area officials again extend their shelter-in-place orders, this time through the end of May. Tesla is forced to call off plans to reopen its plant on 4 May. 28 April Musk adopts the rhetoric of anti-lockdown protesters in a late-night Twitter rant, tweeting, “FREE AMERICA NOW” and “Give people their freedom back!” He also falsely describes the shelter-in-place restrictions as “de facto house arrest”. 29 April Musk unleashes another rant during Tesla’s quarterly earnings call with investors, declaring public health measures “fascist” and demanding: “Give people back their goddamn freedom.” Tesla beats analyst expectations for the quarter, delivering its third straight quarterly profit despite the major coronavirus disruptions. 1 May Another Twitter diatribe by Musk wipes about $13bn off Tesla’s market value, after he declares that he plans to sell “almost all physical possessions”, including his house(s), and then opines that Tesla’s stock price is “too high imo”. Tesla’s stock price drops about 9% following the tweets. 4 May Musk’s partner, Claire Boucher, a musician who performs as Grimes, gives birth to the couple’s first child, a son named X Æ A-12. 7 May Newsom announces new rules to allow some non-essential businesses, including some manufacturers, in California to reopen on 8 May. He also says that local rules supersede statewide rules, if they are stricter. 8 May California’s phased reopening begins with some loosening of the statewide shelter-in-place order. 9 May Tesla sues Alameda county, alleging that the county’s continuing shelter-in-place order is unconstitutional. On Twitter, Musk declares that Tesla will “now move its HQ and future programs to Texas/Nevada immediately” and threatens to stop manufacturing in Fremont. Musk also attacks the local public health officer, Dr Erica Pan, calling her “unelected and ignorant”. County officials say they have been working with Tesla on a safety plan to allow the factory to reopen. 11 May Tesla resumes production at the Fremont factory in defiance of the public health order. Musk tweets, “If anyone is arrested, I ask that it only be me.” Alameda county officials tell Tesla that it is violating the public health order and say they hope it will “comply without further enforcement measures”. 12 May Trump tweets in support of Tesla reopening. Musk responds: “Thank you!” Late in the evening, Alameda county announces that it has received Tesla’s safety plan and “agreed that Tesla can begin to augment their minimum business operations this week in preparation for possible reopening as soon as next week”. The county says it will work with the local police force “to verify Tesla is adhering to physical distancing” and that other safety measures are in place. Musk tweets a photo of an ice-cream sundae with the message, “Life should be lived.” The photograph was posted on Instagram by a food blogger in 2017 and re-shared by the Italian restaurant chain Buca di Beppo that same year.