Palam Sunday has no historical authenticity. It could be a duplication of the festival of Bacchus, the god of wine. On his festival day, the god's statue was put on a horse and was paraded to the city gates. Also see : 1 Maccabees 13:51 New Revised Standard Version Updated Edition 51 On the twenty-third day of the second month, in the one hundred seventy-first year, the Jews[a] entered it with praise and palm branches, and with harps and cymbals and stringed instruments, and with hymns and songs, because a great enemy had been crushed and removed from Israel.- The Gospel Hosana is a duplication. Also see: in the Synoptic, Jesus enters the city of Jerusalem on the last Sunday of his public ministry, and he is killed within a few days. But according to the Gospel of John, the temple entry is the inauguration of his public works, and he preaches for 3 years. So, the entire gospels are fiction. 🙏😇-andrew