Did "Dom Perignon" really invent champagne?

"Contrary to legend and popular belief, Dom Pérignon did not invent sparkling wine, but he did make important contributions to the production and quality of Champagne wine. The oldest recorded sparkling wine is Blanquette de Limoux, which was apparently invented by Benedictine Monks in the Abbey of Saint Hilaire, near Carcassonne in 1531.[8] They achieved this by bottling the wine before the initial fermentation had ended. Over a century later, the English scientist and physician Christopher Merret documented the addition of sugar to a finished wine to create a second fermentation, which occurred six years before Dom Perignon set foot in the Abbey of Hautvillers and almost 40 years before it was claimed that the famed Benedictine monk invented Champagne."

https://en.wikipedia.org/wiki/Champagne