You can communicate better and understand the culture better
Hijole ! Because is the expression the admiration and amazing.
I think its imperfect of haber+past participle.
i hope this helps u
Sept. 15 was chosen as the starting point for the celebration of Hispanic<span> Heritage Month because it is the anniversary of independence of five </span>Latin<span> American countries: Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua. In addition, Mexico and Chile celebrate their independence days on Sept. 16 and Sept. 18.</span>