June 29, 2010
Introducing the First Male Birth Control Pill
https://www.cosmopolitan.com/lifestyle/news/a8721/male-birth-control-pill-contraception/
That's the earliest year I remember hearing about a male birth control pill. There are probably articles from years prior to 2010. Obviously this is a great advancement, but is it reasonable to expect one of these to actually come to market within the next decade?
Edit: Actually, this is discussed in an article linked to by the Scientific American article:
A joke among researchers in the field of male contraception is that a clinically approved alternative to condoms or vasectomy has been five to 10 years away for the past 40 years.