As we learned from the Foursquare, user ID numbers don't quite match up to the network's actual number of user accounts, but in the past have been correlated as a sign that the network is fast approaching the milestone.
Children grow up way too fast, and every milestone -- from leaving her home for our first date night, to sending her to nursery for the first time, to not picking her up regularly because she walks - leaves pangs of nostalgia in my heart.
Barry Bonds hit his 31st homer, reaching yet another milestone faster than anyone in major league history, and also scored three runs as the San Francisco Giants beat the San Diego Padres, 7-6, last night at Pacific Bell Park.
The 2011 Crunchie award winner for Best New Startup has been on a roll lately, hitting almost 12 million monthly unique visitors and crossing the 10 million milestone faster than any previous independent site, according to comScore.
The Universal Studios Florida version of the ride hosted its one millionth rider on 14 July 2008, reaching the milestone faster than any other attraction in the resort.
He reached the 150-RBI milestone faster than any major leaguer since Boston's Walt Dropo needed only 155 games, in 1949 51.
And it reached that milestone faster than any studio, thanks to big hits such as "Furious 7," "Fifty Shades of Grey," both of which also have grossed more than $500 million in worldwide receipts, and the plucky "Pitch Perfect 2".
"S&M" became Rihanna's tenth US number-one single on the chart, tying her with Janet Jackson in fourth place for female soloists who have topped that chart; with only four years, eleven months and two weeks between her first and tenth number one on the chart, Rihanna achieved the milestone faster than any other solo artist.
Stars Coach Ken Hitchcock's 200th victory came in his 358th game, making him the fifth fastest to reach the milestone.
Charlie Sheen's million Twitter followers are "the fastest accumulation of that milestone in Twitter's history".
When the company went public in 1980, its market value exceeded $1 billion, at the time the fastest rise to that milestone in corporate history, and Wozniak's stock in the company made him an instant multimillionaire.
