There is no special reason for the date. Frequently the feast date commemorates the anniversary of the death of a person. However, this custom was not followed in the case of Blessed John XXIII. Only the Sacred Congregation for the Causes of Saints knows why that particular date was chosen.
Pope Leo XIII (1878-1903)Pope St. Pius X (1903-14)Pope Benedict XV (1914-22)Pope Pius XI (1922-39)Pope Pius XII (1939-58)Pope John XXIII (1958-63)Pope Paul VI (1963-78)Pope John Paul I (August-September 1978)Pope John Paul II (1978-2005)Pope Benedict XVI (2005-2013)Pope Francis (2013-)
Pope St. John Paul II was the first and, to date, only pope from Poland.
Pope John Paul II died April 2, 2005.
Yes, he was the first and, to date, only pope from Poland.
March 19, 1854 is the date of his death.
XXIII-VIII-MMV XXIII-VIII-MMV
1499
May 18, 1920 (Poland)
To date only Pope Paul VI (visited in 1970) Pope John Paul II (1986, 1995) and Pope Benedict XVI (2008)
XXIII-II-MMVIIII or XXIII-II-IMMX and notXXIII-II-MMIX
the 31st may 1982