Index First

These are tropes about what came "first". One set deals with where/how something started, the other is about things that occur in an order you would not expect.

In the second type, the British market may see a game released first, followed by the anime and manga, but in the original Japanese market, the manga came first, followed by the anime and then the game.

Tropes about origin:

Tropes about unexpected sequence:

And a trope about a sequence of multiple adaptations: