This document is an article titled "La lengua valenciana" by Josep Guillén Milla published in print media and online by Valencian.org in 2002 in Valencia. The article aims to rebut erroneous theories about the Valencian language that claim it was introduced by Catalan soldiers during the conquest of the Kingdom of Valencia without historical evidence. It argues that the Valencian language developed independently over centuries due to the influence of various populations in Valencian territory prior to the conquest.