WASHINGTON, D.C. Started in 1920, the White House Correspondents’ Association dinner—aka Washington’s “nerd prom”—is the one night a year (in non-election years, that is) when Washington politicians, Hollywood starlets, and New York media heavyweights descend on the city, all for the 3,000-guest dinner at the Hilton. In the past decade, a slew of events hosted by media outlets like Vanity Fair, Bloomberg, People, Time, and MSNBC have entered the fray to compete for guests and press mentions. And the ballooning proceedings have become another stop for celebrities shuttling between the likes of the Super Bowl, the Oscars, and Sundance. Here’s a look at the biggest events to appear in the 2000s, and how they’ve changed and grown.