The phrase "Do you remember the 21st night of September?" is the opening line from the song "September" by Earth, Wind & Fire, released in 1978. The song itself is a joyful, soulful celebration of love, dancing, and happy memories. The choice of the date September 21 was not due to any specific historical event or deeper significance but simply because it sounded the best lyrically and fit the meter of the song. The lyricist Allee Willis stated in interviews that they tried many dates and the 21st "just sang better" than the others. Over time, the phrase and the song have become iconic, celebrated annually on that date as a feel-good anthem about nostalgia and joy.
In summary, the 21st night of September is memorable because of the song, not because of an actual event. It symbolizes a fun, romantic night filled with dancing and happiness, immortalized by Earth, Wind & Fire's classic tune.
