https://www.pcgamer.com/amd-reflects-on-50-years-of-cpu-design-as-it-readies-new-ryzen-processors/

It has taken AMD nearly five decades to find (and develop) Zen in the CPU space. Now in 2019, AMD is in a much different place now than when it was founded on May 1, 1969, and as the chip designer approaches its 50-year anniversary, it has posted an "innovation timeline" looking back at some of its accomplishments throughout the years.

Shown above, for example, is the Am386 released in 1991. Essentially a clone of Intel's 80386 processor, the Am386 helped put AMD on the map as a viable competitor. It also could have debuted earlier than it did, but a legal battle with Intel over AMD's right to produce a processor based on its 80386 design prevented that. The Am386 also established AMD as the second largest microprocessor manufacturer, having leapfrogged Motorola by the end of 1991.