Erlang wasn't open sourced until the late 90s. Erlang was never really marketed....

		bmitc 9 months ago \| parent \| context \| favorite \| on: Why I wrote the BEAM book Erlang wasn't open sourced until the late 90s. Erlang was never really marketed. Elixir arose fairly quickly. Erlang and Elixir are nice because concurrency isn't tacked onto the language like those other languages.