When I converted to Christianity in 1986, I attended a church whose founder had written books stating that true believers (the "invisible church") would be raptured within a generation of the re-establishment of the nation Israel.
Since Israel became a nation in 1948, there were a lot of people in my circles who were pretty sure the rapture would occur in April of 1988. I never really bought this or even cared about it. However, since 1988 passed without any obvious rapture (though I suppose we could be presumptuous in thinking anyone would notice if there was a rapture), those who were certain '88 would be the year hemmed and hawed and had to realign their dispensational theology to construct a new interpretation. Chuck Smith, though, always said a generation could be 40 years or it could be 70 years (based on one of the Psalms -- i forget which one), which brings us to 2018. Uh oh.
In 1988 I was a huge fan of an Oregon writer named Dave Hunt, and i purchased every single book he had written (there were quite a few) including the controversial, "The Seduction of Christianity." That book was an attack on the new age movement, psychology, and of course, people who were not dispensationalists like Hunt. He would later launch full-book attacks on Calvinism and Catholicism (and Greek Orthodoxy), but I was already Orthodox and not interested when these were published. Another guy I liked as a naive neophyte was Jimmy Swaggart, and he helped promote Hunt's book as well, as an avowed dispensationalist himself.
In 1989 I met Dave Hunt when he came to give a lecture at the Bible College i was attending (founded by Chuck Smith). My friends and i briefly discussed with him the subject of Calvinism, which was a tricky subject because the dean of the school considered himself a "four-point Calvinist" -- as I recall, he did not buy into the doctrine of limited atonement. But he was influencing the students, including me, which would eventually result in his termination as dean. But he did emphasize, even during that discussion, the "imminent return" of Jesus in the air to meet us and take us to heaven while tribulation started on earth. Something about this began to bother me at that point.
I found a book titled "The Reduction of Christianity," which was a response to Hunt's "Seduction." The primary thesis was that Hunt's eschatology, rooted in dispensationalism, had no place for either social or personal ethics because if we are going to get raptured anytime now, why waste time with social ethics? Back in the day, most evangelicals felt the same way, and there's a contingency that still does. Why bother getting involved in politics or paying attention to world events? Why bother with environmental protections, as Reagan's Secretary of the Interior said, if "it's all going to burn anyway." The prevalent dispensational theology of the evangelical Church, claimed DeMar and Leithart, was a formula for ethical failure. So I began to explore and identify with the binary opposite, covenantalism, within that context.
After reading this book, which also refuted the whole idea of the rapture as a contemporary invention in interpretation, I also came to reject it, and started to read the amillenial and postmillenial theologians such as Hodge, Warfield, Boettner, and others, and finally, in early 1990, concluded that I was also a postmillenial Christian. This meant that I believed the prophecies in Revelation 20 regarding the return of Christ would take place after a thousand years of peace on earth, a kingdom of righteousness that would occur through the transformative efforts of the church influencing society and culture through engaging in every area of life, including politics.
I started reading books by other postmillenial Reconstructionists, such as Gary North (who, speaking of failed prophecies, was one of the main influencers propogating the Y2K scare in 1999), George Grant's "The Changing of the Guard," and even the thick Institutes of Biblical Law by the noxious Rousas John Rushdooney, in which among many other subjects he calls for a social structure that looks pretty much like 'A Handmaid's Tale'. If outright execution of homosexuals, for instance, wasn't generally accepted right away, certainly we should not allow them to own property, I recall reading. And while abortion was anathema and the most degraded sin of any civilization, stoning rebellious kids was okay because it's right there in the Law.
When I discovered Orthodoxy in 1993, I miraculously abandoned the constructs of my purely intellectual theologizing without a struggle, including Calvinism and Reconstructionism. At the time time, the Reconstructionist movement seemed like a foolhardy and impossible ambition as well, at least to me. Gary North had written a book, "Backwards, Christian Soldiers" in which he compared his ideology to Marxism, and said that his ambition was to be greater than Marx, and that, unlike Marx, his was of divine origin as revealed in the Scriptures. I thought it was very unlikely they would get much traction. But I was wrong.
Today, the Vice President of the United States Pence, is a Reconstructionist, which to me is scarier than the folly of a madman who presently holds the higher office. That's quite a bit of new currency for the movement, which I repudiated and confessed as a sin on the day of my baptism.
So 2018 is an interesting year in which we have a Reconstructionist in one of the highest offices of the United States, and a few old, hard-core evangelicals are still wondering if a generation was really 70 years, and not 40.