There's no real answer to your question, because we don't even know what the first language was yet! We know it was a very long time ago, and the first evidence of language dates back to cuneiform.
Studies in Second Language Acquisition was created in 1978.
The American Language was created in 1919.
A Key Into the Language of America was created in 1643.
My first language is English.
There is no definitive number of first names in the English language as it constantly evolves with new names being created and used. There are thousands of first names in common usage, with more being added over time.
Unix was created first. The C programming language was created for Unix.
Studies in Second Language Acquisition was created in 1978.
The American Language was created in 1919.
The first English dictionary was created by Samuel Johnson and it was published in 1755. Johnson's dictionary was a landmark achievement in the standardization of the English language.
A Pattern Language was created in 1977.
The Twilight Language was created in 1986.
The Language of Cities was created in 2002.
Language College was created in 1995.
Language - journal - was created in 1925.
The Language of the Genes was created in 1993.
Language Sciences was created in 1979.
Unknown Language was created in 2005.