Japanese animation was already popular decades before.
But I think it's fair to say that Dragon Ball was the most ubiquitous piece of anime on the globe across the 90s/2010s and the one with the longest lasting impact
Depends on where you were. I was an American fan of anime before it was really socially acceptable and I've been of the mind that its popularity was probably inevitable once enough old guard culturally sneering at it died. Same as happened with video games.
But DBZ (and Sailor Moon) definitely solidified it as a respectable commercial force for the mainstream USA, and gave a unified culture experience that's now pop culture, thanks to millenials getting old.
But I think it's fair to say that Dragon Ball was the most ubiquitous piece of anime on the globe across the 90s/2010s and the one with the longest lasting impact