References 380% CONFIDENCEOverall confidence: 80%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%amgen.com/about/amgen-historyamgen.com· Posted Oct 4, 2026· Starts Jun 1, 1989 ✓· 33% of score
Amgen's own history page and FundingUniverse's[2] company history both give 1 June 1989 as the FDA approval date.
- [2]78%Amgen, Inc. History - FundingUniversefundinguniverse.com· Added Oct 4, 2026· 33% of score
Company history giving the 1 June 1989 approval and first shipment.[1]
- [3]72%Amgen Inc. - Encyclopedia.comencyclopedia.com· Added Oct 4, 2026· 33% of score
Company profile on Amgen's[1] origins and Epogen/Neupogen.
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