What were those Poneglyphs from the Alabasta arc? During the Alabasta arc when the crew was crossing the desert, Luffy, Zoro and Chopper fell down a hole which led to a big dome-like structure. In the dome, there was a huge stone with Poneglyphs written on it. None of them knew what it was much less its meaning. It was dismissed. What I'm wondering is if those Poneglyphs was important and whether or not it had some clues about the Void Century?
As you can see from this list, episodes 101-102 which Luffy, Zoro and Chopper find the Poneglyph it's actually a filler episode. 



So this Poneglyph wasn't introduced in the manga, so that means that whatever was wrote on it doesn't matter.