First time winning 3 grand slams?
This article in ATP site about Federer has:
For the first time in his career Federer won three Grand Slam titles in the same season, following his second Australian Open title in January and his fourth consecutive Wimbledon championship in July. Federer is the first man to reach all four Grand Slam finals in a calendar year since Rod Laver in 1969 and the only man in the Open Era, and one of four in history, to reach the final at six consecutive Grand Slam events.
Wans't the year of 2004 the first time he've done it?