Ruby25周年記念イベントでの発表資料です。 Ruby年表については https://github.com/takahashim/ruby-history にまとめています（随時更新中）。

2. 🎉🎉

16. 🎉🎉🎉🎤

22. https://github.com/takahashim/ruby-history

41. https://groups.google.com/forum/#!msg/fj.sources/bCc2JimcmAo/ONqCnbyG7LMJ

44. https://internet.watch.impress.co.jp/www/article/970922/ruby.htm

79. http://magazine.rubyist.net/?0006-PackageManagement

81. http://magazine.rubyist.net/?0006-PackageManagement

90. https://github.com/blog/515-gem-building-is-defunct

96. https://github.com/blog/515-gem-building-is-defunct