The long-awaited antitrust trial between Meta and the Federal Trade Commission kicked off on April 14th. Over about two months, DC District Court Chief Judge James Boasberg is hearing arguments about whether then-Facebook illegally monopolized the market for “personal social networking services” through its acquisitions of Instagram and WhatsApp.

Mark Zuckerberg floated the possibility of spinning off Instagram from his social media empire amid rising regulatory scrutiny of the technology sector and an increasing concern that the photo sharing app was “cannibalizing” the success of Facebook.

Meta’s antitrust trial, in which the government contends the company killed competition by buying young rivals, hinges on unknowable alternate versions of Silicon Valley history.