Happy 67th birthday to 7" vinyl disc

The first 45 rpm disc, Texarkana Baby by country-and-western singer Eddy Arnold, was issued by RCA in the US on 31 March 1949. 

It was made of green vinyl, as part of an early attempt to colour-code singles according to the genre of music they featured. Others included red for classical music and yellow for children’s songs. 

Happy birthday!