I am currently playing a Tabaxi Druid, Circle of the Moon. I wanted to flesh out his backstory, so I read up on them in Volo's Guide to Monsters. In a box on page 113, it said:
In the Forgotten Realms, tabaxi hail from Maztica, a realm located far across the ocean west of the Sword Coast. The tabaxi of Maztica are known for their isolation, and until recently they never ventured from their homeland. The tabaxi say little of why that has changed, though rumors persist of strange happenings in that distant land.
I thought that it would be interesting to have my Tabaxi immigrate from Maztica to Faerun, and then travel to Chult for the current adventure, Tomb of Annihilation. There's only one problem: I don't know why my Tabaxi, along with many others, left Maztica. Are the problems detailed in a published adventure, or does Volo's Guide just leave it up to the player? I want to roleplay my character better, and I think that knowing what happened to my home island will help.