Which came first, Feline Immunodeficiency or Human Immunodeficiency virus?

Factual Questions
1

Which was known first? I hear people referring to FIV as “Feline AIDS” but did anyone know about FIV before 1980?

2

Friend is Google, your:

http://www.fabcats.org/fiv.html
http://www.scripps.edu/newsandviews/e_20030414/elder.html
http://www.veterinarypartner.com/Content.plx?P=A&A=1313&S=1&SourceID=42

Stranger