When was Joan of Arc beatified?

Joan of Arc was beatified by Pope Pius X on April 11, 1909.
Joan of Arc was canonized by Pope Benedict XV on May 16, 1920.

Joan of Arc's trial was overturned on July 7, 1456. In the Church's ruling, Joan was declared a martyr who was wrongly executed by corrupt partisan clergy abusing a Church trial for secular purposes.

Joan of Arc was officially beatified by Pope Pius X on April 11, 1909.

Joan of Arc was officially canonized by Pope Benedict XV on May 16, 1920.

Joan of Arc was canonized a saint by the same Church that had once executed her for heresy.