March 9 is the 68th day of the year (69th in leap years) in the Gregorian calendar. There are 297 days remaining.
- 2001: "Shanghaied" premiered.
- 2004: "SpongeBob Goes Prehistoric" episode collection is released on DVD and VHS.
- 2013: "Evil Spatula" premiered.
- 2031: The second day of SpongeBob and Patrick's journey to get the crown back in The Spongebob Squarepants movie.
- March 9 on Wikipedia