We've talked about medieval attitudes to the end times before (here and here, for example). Clearly the world did not end or change radically at the millennium, and Joachim was trying to figure out what biblical references to upcoming events meant. What he proposed was a theory of the ages of the world that was very appealing to his co-religionists, and saw what lay ahead in very attractive terms.
He tied the history of the world—both past and future—into the concept of the Trinity. The first age of the world was represented by God the Father and aligned with the Old Testament. The second age was the age of Jesus Christ, and aligned with the New Testament. A third age was coming, however, and this is why Joachim's thought was such a pivotal moment in theology and culture. Each age was better than the previous, and the best was yet to come.
Of course people had a concept of the future, in that they knew they would wake up tomorrow and different events might happen during their day. They knew they would eventually die, but their children would age, have children of their own, and the cycle would continue. Joachim envisioned a future in which the entire world evolved into something new.
The third age was the age of the Holy Spirit. It was supposed to arrive at or by 1260, and would be the age of universal love, the Kingdom of the Holy Spirit, and the ecclesiastical structure of the Roman Catholic Church would be replaced—an enormous change in society!—by the "Order of the Just," people whose level of Christian enlightenment would mean no rules were needed: people would simply care for each other.
Those who felt the church was too worldly were attracted to Joachim's theory. One of Joachim's followers, Gerardo, would later declare the "Order of the Just" was the Franciscan Order, that had developed an ascetic branch called the Spirituals. Ubertino de Casale adopted Joachim's ideas. Joachim's notion of the third age also inspired the Cult of the Holy Spirit centuries later.
One of the problems with the reception of his writing was, of course, that he foresaw the end of the current ecclesiastical system. He had no problem declaring the end of the papacy because Rome was Babylon and the pope as the Antichrist. As the year 1260 approached, however, his writing was widely circulated. Thomas Aquinas (writing just after 1260) opposed Joachim's theory, but Dante (c.1265 - 1321) placed Joachim in Paradiso. Some Franciscan Joachimite Spirituals decided that the Antichrist was Holy Roman Emperor Frederick II (died 1250).
The Fourth Lateran declared some of his ideas heretical. Worthy of note, however, was that Joachim himself was still respected and never declared a heretic.
Joachim has been referenced by poets and authors, including Umberto Eco, James Joyce, Yeats, the modern Illuminatus trilogy. Some think that Hegel's theory that each age of history gets better than the last came from Joachim's theory. There was even a 2023 movie called Joachim and the Apocalypse.
I want to get away from "heavier" topics for a bit and build on what I said in the fourth paragraph above. Tomorrow we'll look at the question "Did children exist in the Middle Ages?"
