Data source: Github Archive, a dataset of Github events queryable using Google BigQuery.
$ bq --format json query "SELECT repository_language, repository_description, repository_homepage, repository_name, repository_url FROM [githubarchive:github.timeline] WHERE type='PushEvent' AND ( repository_language='JavaScript' OR repository_language='Ruby' OR repository_language='Python' ) AND PARSE_UTC_USEC(repository_created_at) >= PARSE_UTC_USEC('2013-01-01 00:00:00') AND PARSE_UTC_USEC(repository_created_at) < PARSE_UTC_USEC('2013-08-30 00:00:00') LIMIT 100"