45s.com -- 45 rpm Vinyl Records 

45 rpm vinyl records were first manufactured on March 31, 1949.  The 45 was created by RCA as an anti-competitive move against Columbia, which had just introduced the new microgroove 33 1/3 rpm album.  The number 45 came from taking 78 and subtracting Columbia's 33 = 45.  On March 31, 1949, RCA released 104 singles on 45 rpm vinyl records.  The first 45 to hit the Billboard charts was "A -- You're Adorable" by Perry Como (RCA Victor 47-2899), listed on the charts on May 7, 1949.  The next week, the year's biggest hit appeared on the Billboard charts -- "Riders In The Sky (A Cowboy Legend) by Vaughn Monroe (RCA Victor 47-2902).

The mass production of 45 rpm vinyl records stopped in the early 1990's.  Some vinyl records are still manufactured today, but for the many vinyl record lovers, it is sad that so few vinyl records are being made today.

FYI: Vinyl seems to be a commonly misspelled word.  It isn't vinal, vynil, vinel, or vinil; it's vinyl.

Aardvark Record Mastering -- Source that manufactures 45 rpm vinyl records.