As I was writing a deck on some bits of genomic history, I noticed the OncotypeDx test had its 20th anniversary in April 2020. While this event got a bit of attention (check Google), I don't recall seeing any.
So, on April 11, 2025, Oncotype Dx has its 21st birthday. Based on their iniitial April 2004 publication in NEJM.
https://www.nejm.org/doi/full/10.1056/NEJMoa1804710