Here's a list of shared universe timeline of Don Bluth's franchise I can think of:
(%) = films that're not directed by Don Bluth
- Late-Cretaceous Period (The Land Before Time and its sequles (%))
- 1st Century (The Small One)
- Dark Ages-Middle Ages (Dragon's Lair trilogy, Thumbelina, and Bartok the Magnificent)
- 1885-1890 (An American Tail and its sequles (%))
- 1916 (Anastasia)
- 1939 (All Dogs go to Heaven)
- 1940s (Banjo the Woodpile Cat)
- mid or late 1950s (Rock-a-Doodle)
- 1970s-1980s (The Secret of NIMH and The Secret of NIMH 2: Timmy to the Rescue(%))
- 1993-4 (A Troll in Central Park)
- 1995-6 (The Pebble and the Penguin)
- 1996-8 (All Dogs Go to Heaven 2(%), All Dogs Go to Heaven: The Series(%), All Dogs Christmas Carol (%), and All Dogs go to Heaven 4(%))
- 3028 (Titan A.E.)
- 4000s-4020s (Space Ace)
So what did you think? Do I got it right? Any flaws that I can fixed? Please comment.