After the Fourth Lateran Council, Communion, which continued to be given only after confirmation, was to be administered only on reaching the age of reason. Some time after the 13th century, the age of confirmation and Communion began to be delayed further, from seven, to twelve and to fifteen. In the 18th c. in France the sequence of sacraments of initiation was changed. Bishops started to impart confirmation only after the first Eucharistic communion. The reason was no longer the busy calendar of the bishop, but the bishop's will to give adequate instruction to the youth. The practice lasted until Pope Leo XIII in 1897 asked to restore the primary order and to celebrate confirmation back at the age of reason. That didn't last long. In 1910 his successor, Pope Pius X, showing concern for the easy access to the Eucharist for children, in his Letter "Quam Singulari" lowered the age of first communion to seven. That was the origin of the widespread custom in parishes to organise the First Communion for children at 2nd grade and confirmation in middle or high school.