Why is there a Canadian team in the NBA?

As of the 2010-2011 season there are currently 5 Canadians playing in the NBA.

1. Joel Anthony- Miami Heat, 4th season

2. Samuel Dalembert- Philadelphia 76ers (2001-2010), Sacramento Kings (2010-present), 11th season

3. Jamaal Magloire- Charlotte/New Orleans Hornets (2000-2005), Milwaukee Bucks (2005-2006), Portland Trail Blazers (2006-2007), New Jersey Nets (2007-2008), Dallas Mavericks (2008), Miami Heat (2008-present), 10th season

Steve Nash- Phoenix Suns (1996- 1998, 2004-present), Dallas Mavericks (1998-2004), 15th season

Andy Rautins- New York Knicks (2010-present) 1st season