Possible Questions:
- Driver's license info
- Present time, for short
- Cake time, for short
- Annual celebration, for short
- Time to blow out the candles, for short
- Party occasion, for short
- Occasion for sending an ecard, maybe
- May 16th for yours truly, for short
- Kids' party occasion, for short
- Kids' party occasion, briefly
- Jan. 15, for MLK Jr.
- Jan. 15, for Martin Luther King Jr.
- Greeting card type, briefly
- Gift-giving occasion, for short
- Fourth of July, for Calvin Coolidge, informally
- Celebration time, for short
- Card type, for short
- Cake-and-candles time, for short
- Brief cause for celebration, and this puzzle's title
- Brief cause for celebration
- Annual milestone, briefly