Continuity: Rachel's birthday is inconsistent. In "The One with Joey's New Girlfriend", Rachel tells Gunther her birthday is May 5, and this is consistent with the month of birthday parties thrown for her in this episode (which aired in May 1995) and in her one-month-early surprise party in "The One Where Rachel Smokes" (which aired in April 1999). Rachel's 30th birthday, however, is celebrated in February in "The One Where They All Turn Thirty", which aired on February 8, 2001. Rachel also mentions that her birthday is after Valentine's Day in "The One with the Girl From Poughkeepsie". A birthday in February is also consistent with Rachel's statement to a police officer in "The One with Chandler's Dad" that she is an Aquarius (January 21- February 19).