👉 Postmillennialism is a theological concept that suggests that humanity will experience a period of significant change and growth after the end of the millennium, which is believed to be between 2017-2100. This time frame is often referred to as "postmillennium" or "the millennial age." The term was coined by theologian Martin Heidegger in his work "The Collected Writings of Martin Heidegger," which explores the implications of post