| 1968 | Released "Born to Be Wild" on their self-titled debut album, sending it to No. 2 on the Billboard Hot 100 and etching the lyric "heavy metal thunder" into rock vocabulary for the first time. |
| 1968 | Released "Magic Carpet Ride," their second consecutive Top 3 hit, cementing Steppenwolf as the defining hard-rock act of the counterculture era. |
| 1969 | "Born to Be Wild" and "The Pusher" featured on the Easy Rider film soundtrack, turning both songs into generational anthems and exposing the band to millions of new listeners worldwide. |
| 1969 | Released "Monster," a sprawling political rock suite that showcased the band's willingness to address war, racism, and government corruption at the height of the Vietnam era. |
| 1969 | Scored the Top 10 hit "Rock Me," extending their run to three Top 10 Billboard Hot 100 singles across a single calendar year. |
| 1970 | Steppenwolf's catalog of hard-driving anthems helped establish the structural and tonal fundamentals of hard rock, influencing the genre's explosive growth across the decade that followed. |
| 2018 | "Born to Be Wild" selected as an inaugural inductee in the Rock and Roll Hall of Fame's Singles category, recognizing it as one of the most historically significant recordings in rock history. |
| 2018 | Concluded Steppenwolf's 50th anniversary farewell tour with a final performance in Baxter Springs, Kansas, closing out five decades of non-stop touring under John Kay's leadership. |
| 2019 | John Kay launched a solo performance run featuring acoustic concerts and a multimedia presentation titled "Born to Be Wild: From Rock Star to Wildlife Advocate," spotlighting his conservation work with the Maue-Kay Foundation. |
| 2024 | John Kay launched the podcast "Rockstar to Wildlife Advocate" on YouTube and Spotify, chronicling his journey from Steppenwolf frontman to environmental activist and offering an archive of the band's full legacy. |