At its core, the story of Cadillac is one of large, powerful, imposing luxury cars. Seville, Deville, Eldorado, Fleetwood — the names of the brand’s land yachts are legendary, having graced generation after generation of enormous, sybaritic sedans, coupes, and convertibles across the span of the 20th Century.

In the 21st Century, however, the role of the massive Cadillac has been filled not by a car, but by an SUV: the Escalade. While it may share its bones with the humble likes of the Chevrolet Tahoe and Suburban, the Escalade has carved out a niche as the flagship for General Motors’s luxury brand, all while also defining what a luxury sport-utility vehicle should be these days. For most of the past couple decades, Escalade has also simply been Cadillac, becoming its highest-selling model and one of GM’s most important and profitable cars.

Cadillac’s recent shift into electric luxury doesn’t figure to change that much, with the all-electric Escalade IQ carrying on the tradition, but the Escalade’s role as the Wreath and Crest’s standard-bearer didn’t come easy. It also didn’t happen overnight, as in the beginning — more than a quarter-century ago — no one was quite sure that the world wanted a huge, luxury SUV. This is the history of the Cadillac Escalade.