At Jerusalem, the Solemnity of the Ascension of the Lord is celebrated exactly 40 days after Easter of Resurrection, following Luke's account in the Acts of the Apostles saying this: He presented himself alive to them by many proofs after he had suffered, appearing to them during forty days and speaking about the kingdom of God… When he had said this, as they were looking on, he was lifted up, and a cloud took him from their sight.While they were looking intently at the sky as he was going, su...