- 1993/02/24 まつもとゆきひろ氏と石塚圭樹氏のチャットで「Ruby」と命名 https://blade.ruby-lang.org/ruby-dev/5173 https://blade.ruby-lang.org/ruby-list/15977
- 1994/12 Itojun氏提供のMLとFTPサーバによりクローズドα版を配布 http://www.rubyist.net/~matz/20071031.html
- 1995/12/21 ruby 0.95をfj.sourcesにて配布 https://groups.google.com/forum/#!msg/fj.sources/bCc2JimcmAo/ONqCnbyG7LMJ
- 1995/12/21 ruby-list ML公開 https://blade.ruby-lang.org/ruby-list/1
- 1996/12/25 ruby 1.0(1.0-961225)公開 https://blade.ruby-lang.org/ruby-list/1488
- 1997/07/28 ruby-dev ML開始 https://blade.ruby-lang.org/ruby-dev/1
- 1997/08/13 1.1 alphaリリース https://blade.ruby-lang.org/ruby-dev/123
- 1997/09/22 Internet Watch誌に「Perlに代わるスクリプト言語? お手軽オブジェクト指向言語「ruby」」掲載 https://internet.watch.impress.co.jp/www/article/970922/ruby.htm
- 1997/10 TRY!PC 11月号に「ちょーわかりやすい!Perl & ruby 入門」 https://blade.ruby-lang.org/ruby-list/5050
- 1997/12/16 オンラインソフトウェア大賞97にRubyが入賞 http://www.nmda.or.jp/enc/fsp/sjis/osp97.html http://www.iajapan.org/osp/osp97.html
- 1998/01/16 CVS導入 https://blade.ruby-lang.org/ruby-dev/1244 https://git.ruby-lang.org/ruby.git/commit/?id=3db12e8b236ac8f88db8eb4690d10e4a3b8dbcd4
- 1998/02 fj.lang.ruby 開始 https://blade.ruby-lang.org/ruby-list/6404
- 1998/11/11 Perl Conference JapanでまつもとさんがRubyについて講演 https://www.oreilly.co.jp/pcjp98/workshop.htm
- 1998/12/24 1.3開発版リリース https://blade.ruby-lang.org/ruby-dev/3962
- 1998/12/25 1.2-stableリリース https://blade.ruby-lang.org/ruby-list/11444
- 1999/04/20 CVSでのソース配布開始 https://blade.ruby-lang.org/ruby-list/13941
- 1999/08/13 Ruby 1.4.0 リリース https://blade.ruby-lang.org/ruby-list/16118
- 1999/09/04 Ruby Workshop (主催: 日本UNIXユーザ会) https://www.jus.or.jp/workshop/ruby/ruby.html https://www.jus.or.jp/workshop/ruby/ruby-report/index.html
- 1999/09/16 ruby-lang.org 取得 https://blade.ruby-lang.org/ruby-list/17000
- 1999/10 まつもとゆきひろ、石塚圭樹『オブジェクト指向スクリプト言語Ruby』(アスキー) https://www.amazon.co.jp/dp/4756132545
- 1999/11/13 セミナー「オブジェクト指向スクリプト言語Ruby」in オープンソースまつり’99 in 秋葉原 http://www.jus.or.jp/matsuri/seminar_ruby.html
- 2000/04 『オープンデザイン』(CQ出版)No.38より「Rubyではじめるインターネットプログラミング」連載開始 http://www.notwork.org/ipr/1st/
- 2000/07 『C Magazine』(ソフトバンクパブリッシング)8月号より「伝授! 極めよRuby道」連載開始 https://blade.ruby-lang.org/ruby-list/23889 https://www.amazon.co.jp/dp/B00XM7IMK8/
- 2000/09/19 Ruby 1.6.0 リリース https://blade.ruby-lang.org/ruby-list/24978
- 2000/11 まつもとゆきひろ『Rubyデスクトップリファレンス』(オライリー・ジャパン) https://www.oreilly.co.jp/books/4873110238/
- 2000/11 Dave Thomas and Andy Hunt, "Programming Ruby" https://www.amazon.com/dp/0201710897
- 2000/11/29-12/01 Perl/Ruby Conference http://lc.linux.or.jp/lc2000fall/pr-detail.html
- 2001/04/21 tDiary誕生 http://sho.tdiary.net/20010421.html#p02
- 2001/10/12-14 RubyConf 2001 http://www.rubyist.net/~matz/slides/rc2001-a/ http://www.rubyist.net/~matz/slides/rc2001-b/
- 2001/12/28 初代RubyGems 0.4 https://sourceforge.net/projects/rubygems/files/ http://magazine.rubyist.net/?0006-PackageManagement
- 2002/04/10 『たのしいRuby』 https://tanoshiiruby.github.io/1/
- 2002/11/01-03: RubyConf 2002 https://web.archive.org/web/20070704025310/http://www.rubyist.net/~matz/slides/rc2002/ https://www.infoq.com/jp/articles/coming-from-ruby
- 2002/11/09: Lightweight Languages Workshop 2002 (LL2): The Ruby Programming language (invited talk) http://ll2.ai.mit.edu/
- 2003/08/09 LL Saturday http://ll.jus.or.jp/lls2003/
- 2003/06/21-22 European Ruby Conference (EuRuKo) 2003開催 https://www.thecodingforums.com/threads/ann-euruko-2003-videos-available-at-ruby-doc-org.810486/
- 2003/07/22 RubyForge.org released https://blade.ruby-lang.org/ruby-talk/76625
- 2003/08/04 Ruby 1.8.0 リリース https://www.ruby-lang.org/ja/news/2003/08/04/20030804/
- 2004/03/14 新版RubyGems公開 https://github.com/rubygems/rubygems/blob/master/History.txt
- 2004/07/25 Rails 0.5.0 https://blade.ruby-lang.org/ruby-talk/107370
- 2004/08/08 日本Rubyの会設立 https://blade.ruby-lang.org/ruby-list/39946
- 2004/09/10 Rubyist Magazine vol.1 http://magazine.rubyist.net/?0001 https://www.ruby-lang.org/ja/news/2004/09/10/20040910/
- 2005/01/10 YARV 0.0.1リリース https://blade.ruby-lang.org/ruby-list/40511
- 2005/10/21 _why the lucky stiffによるwhy's (poignant) Guide to Rubyの一部が"The Best Software Writing I"に収録
- 2005/12/14 Rails 1.0 https://blade.ruby-lang.org/ruby-talk/170553
- 2006/06/10-11 RubyKaigi(日本Rubyカンファレンス)2006 http://jp.rubyist.net/RubyKaigi2006/
- 2006/06/22-25 RailsConf 2006 http://chadfowler.com/2005/11/27/announcing-railsconf-2006.html
- 2006/07/31 松江オープンソースラボオープン、Ruby City MATSUEプロジェクト http://itpro.nikkeibp.co.jp/article/NEWS/20060801/244793/
- 2006/12/22 ソースレポジトリを https://svn.ruby-lang.org/ に移動 https://www.ruby-lang.org/ja/news/2006/12/22/cvs-repository-moved-to-svn/
- 2006/12/31 merge YARV https://blade.ruby-lang.org/ruby-dev/30060
- 2007/03/04 RailsCast #1 http://railscasts.com/episodes/1-caching-with-instance-variables
- 2007/03/16 CVSサービスを終了 https://www.ruby-lang.org/ja/news/2007/03/01/cvs-services-will-be-permanently-unavailable/
- 2007/03/16 2007年「日経BP技術賞」大賞に「プログラミング言語 Ruby」 http://corporate.nikkeibp.co.jp/information/newsrelease/newsrelease20070316.html
- 2007/04/21 Gotham Ruby Conference 2007 http://2007.goruco.com/about/
- 2007/05/18 rspec 1.0.0 http://www.rubyinside.com/rspec-10-released-501.html https://rubygems.org/gems/rspec/versions/1.0.0
- 2007/06/12 JRuby 1.0 https://web.archive.org/web/20070704022449/http://jruby.codehaus.org:80/
- 2007/07/27 合同会社Rubyアソシエーション設立 https://web.archive.org/web/20071024201026/https://www.netlab.jp/news/2007/07/27/RubyAssociation/
- 2007/12/07 Rails 2.0 http://weblog.rubyonrails.org/2007/12/7/rails-2-0-it-s-done/
- 2007/12/26 Ruby 1.9.0 リリース https://www.ruby-lang.org/ja/news/2007/12/25/ruby-1-9-0-release/
- 2008/04 Rails is moving from SVN to Git http://weblog.rubyonrails.org/2008/4/2/rails-is-moving-from-svn-to-git/
- 2008/08/04 福岡Rubyビジネス拠点推進会議設立 https://mag.osdn.jp/08/07/24/1119217
- 2008/12/23 Rails and Merb Merge http://yehudakatz.com/2008/12/23/rails-and-merb-merge/ http://weblog.rubyonrails.org/2008/12/23/merb-gets-merged-into-rails-3/
- 2009/01/31 Ruby 1.9.1 リリース https://www.ruby-lang.org/ja/news/2009/01/30/ruby-1-9-1-released/
- 2009/02/27 第1回フクオカRuby大賞決定 http://www.digitalfukuoka.jp/event_reports/8?locale=ja
- 2009/04/24 Rack 1.0.0 https://rubygems.org/gems/rack/versions/1.0.0
- 2009/05/22 RubyConf China 2009 http://itpro.nikkeibp.co.jp/article/COLUMN/20090601/331116/
- 2009/07/29 Bundler 0.3.0
- 2009/09/07-08 RubyWorld Conference 2009 http://itpro.nikkeibp.co.jp/article/COLUMN/20090909/336860/
- 2009/10/08 githubがgemの配信を終了、gemcutterに移行 https://github.com/blog/515-gem-building-is-defunct
- 2010/03/23 Sinatra 1.0 released https://mag.osdn.jp/10/03/26/036220
- 2010/03/23 gemの配信が rubygems.org に移行 https://www.infoq.com/jp/news/2010/04/rubygems
- 2010/04/25 Ruby Conference Taiwan 2010 https://rubyconf.tw/2010/
- 2010/05/14 Rubinius 1.0 https://mag.osdn.jp/10/05/17/1023200
- 2010/06/17 unicorn 1.0.0 https://bogomips.org/unicorn-public/[email protected]/T/#m2747b10ae43d3b75bddc0b8f4accfb59eeaac1bf
- 2010/08/22 Redmine 1.0.1 (1.0初の安定版) released http://www.redmine.org/news/43
- 2010/08/23 RVM 1.0.0 released https://github.com/rvm/rvm/commit/182c0b8678226853271a88162bfe06cb17d70ac7
- 2010/08/29 Bundler 1.0.0
- 2010/08/29 Rails 3.0 http://weblog.rubyonrails.org/2010/8/29/rails-3-0-it-s-done/
- 2010/11/26-27 RailsGirls in Helsinki http://railsgirls.com/press_en.html
- 2011/03/22 JIS X 3017 プログラム言語Ruby http://itpro.nikkeibp.co.jp/article/NEWS/20110322/358568/
- 2011/04/22-23 RedDot Ruby Conf 2011
- 2011/07/27 一般財団法人Rubyアソシエーション設立 http://www.ruby.or.jp/ja/about/foundation
- 2011/08 一般社団法人日本Rubyの会設立
- 2011/08/08-12 島根県青少年の家にてRuby合宿開催 http://www.rubycamp.jp/report/2011-summer.html
- 2011/11/26 第1回 中高生国際Rubyプログラミングコンテスト in Mitaka開催 https://www.ruby-procon.net/docs/2017072700040/
- 2012/03/06 Vagrant 1.0.0
- 2012/03/26 2011 Free Software Awards受賞 https://www.fsf.org/news/2011-free-software-awards-announced
- 2012/03/31 ISO/IEC 30170:2012 https://www.ipa.go.jp/about/press/20120402_2.html https://www.iso.org/standard/59579.html
- 2012/05/04 RubyMotion 1.0 released http://merbist.com/2012/05/04/macruby-on-ios-rubymotion-review/
- 2012/11/12 rake 10.0.0 released https://changelog.com/posts/jim-weirichs-rake-goes-from-0-9-6-to-10-0-0
- 2013/02/23 20周年記念パーティ http://ruby20th.herokuapp.com/
- 2013/02/24 Ruby 2.0.0リリース https://www.ruby-lang.org/ja/news/2013/02/24/ruby-2-0-0-p0-is-released/
- 2013/06/25 Rails 4.0.0 http://weblog.rubyonrails.org/2013/6/25/Rails-4-0-final/
- 2013/09/07 cache.ruby-lang.org 構築 https://twitter.com/hsbt/status/376282891174412288
- 2013/12/20 JIS X 3017:2013 https://www.ipa.go.jp/osc/20131220.html
- 2013/12/25 Ruby 2.1.0 https://www.ruby-lang.org/ja/news/2013/12/25/ruby-2-1-0-is-released/
- 2014/01/10 mruby 1.0.0 リリース http://forum.mruby.org/download/index.html
- 2014/03/28-29 RubyConf Philippines 2014 http://magazine.rubyist.net/?0047-RubyConfPH2014
- 2014/09/18-20 RubyKaigi 2014, Ruby 3の構想発表 http://gihyo.jp/news/report/01/rubykaigi2014/0002
- 2014/12/25 Ruby 2.2.0 https://www.ruby-lang.org/ja/news/2014/12/25/ruby-2-2-0-released/
- 2015/03/17 Ruby Together 発足 https://rubytogether.org/news/2015-03-17-announcing-ruby-together
- 2015/05/06 fastlane 1.0.0 released
- 2015/07/22 JRuby 9.0.0.0 Released http://jruby.org/2015/07/22/jruby-9-0-0-0.html
- 2015/11/15-17 RubyConf 2015, Ruby 3x3
- 2015/12/25 Ruby 2.3.0 https://www.ruby-lang.org/ja/news/2015/12/25/ruby-2-3-0-released/
- 2015/12/25 rbenv 1.0.0 https://github.com/rbenv/rbenv/releases/tag/v1.0.0
- 2016/05/10 CocoaPods 1.0.0 http://blog.cocoapods.org/CocoaPods-1.0/
- 2016/06/30 Rails 5.0.0 http://weblog.rubyonrails.org/2016/6/30/Rails-5-0-final/
- 2016/09/21 Homebrew 1.0.0 released https://brew.sh/2016/09/21/homebrew-1.0.0/
- 2016/12/25 Ruby 2.4.0 https://www.ruby-lang.org/ja/news/2016/12/25/ruby-2-4-0-released/
- 2017/01/31 mruby/c 1.0 https://github.com/mrubyc/mrubyc/releases/tag/release1.0
- 2017/12/06 Fluentd 1.0.0 released https://www.fluentd.org/blog/fluentd-v1.0 https://twitter.com/CloudNativeFdn/status/938432717703864320
- 2017/12/09 Rails Developers Meetup 2017 https://railsdm.github.io/2017/
- 2017/12/25 Ruby 2.5.0 https://www.ruby-lang.org/ja/news/2017/12/25/ruby-2-5-0-released/
- 2018/02/24 Ruby25周年記念イベント開催 http://25.ruby.or.jp/
- 2018/03/24-25 Rails Developers Meetup 2018
- 2018/12/19 RubyGems 3.0.0 https://blog.rubygems.org/2018/12/19/3.0.0-released.html
- 2018/12/25 Ruby 2.6.0 Released https://www.ruby-lang.org/ja/news/2018/12/25/ruby-2-6-0-released/
- 2019/01/03 Bundler v2.0.0 https://bundler.io/blog/2019/01/03/announcing-bundler-2.html
- 2019/03/22 Rails Developers Meetup 2019
- 2019/06/21 mruby/c 2.0 https://www.s-itoc.jp/support/technical-support/mrubyc/mrubyc-report/838
- 2019/08/15 Rails 6.0.0 Released https://rubyonrails.org/2019/8/15/Rails-6-0-final-release
- 2019/12/25 Ruby 2.7.0 Released https://www.ruby-lang.org/ja/news/2019/12/25/ruby-2-7-0-released/
- 2020/05/05 RailsConf 2020.2 Couch Edition (virtual, recorded) https://www.youtube.com/playlist?list=PLE7tQUdRKcyZ-TzxlxdLvh6tDUfZHqm76
- 2020/08/21-22 Euruko 2020 -> 2021年に延期 https://twitter.com/euruko/status/1244609527774949377
- 2020/09/04-05 RubyKaigi Takeout 2020 (virtual) https://rubykaigi.org/2020-takeout/
- 2020/11/17-19 RubyConf 2020 (virtual) https://www.youtube.com/playlist?list=PLbHJudTY1K0cyDs1ZwFLzlfQqvkDKt17N
- 2020/10/03 Kaigi on Rails 2020 STAY HOME Edition (virtual) https://kaigionrails.org/2020/
- 2020/12/25 Ruby 3.0.0 Released https://www.ruby-lang.org/ja/news/2020/12/25/ruby-3-0-0-released/
- 2021/03/05 mruby 3.0.0 https://mruby.org/releases/2021/03/05/mruby-3.0.0-released.html
- 2021/04/12-15 RailsConf 2021 (virtual) https://www.youtube.com/playlist?list=PLbHJudTY1K0c8N1-PPyiQxlHNzJIzyJv6
- 2021/05/28-29 Euruko 2021 (virtual) https://2021.euruko.org/
- 2021/09/09-11 RubyKaigi Takeout 2021 https://rubykaigi.org/2021-takeout/
- 2021/09/22 JRuby 9.3.0.0 Released https://www.jruby.org/2021/09/22/jruby-9-3-0-0.html
- 2021/10/20 Ruby TogetherがRuby Centralに合流 https://rubycentral.org/news/ruby-together-and-ruby-central--coming-together/
- 2021/10/22-23 Kaigi on Rails 2021 (virtual) https://kaigionrails.org/2021/
- 2021/11/08-10 RubyConf 2021 (hybrid) https://www.youtube.com/playlist?list=PLbHJudTY1K0f0oMhWtY-UyzOb7tUlaHps
- 2021/12/15 Rails 7.0.0 released https://rubyonrails.org/2021/12/15/Rails-7-fulfilling-a-vision
- 2021/12/25 Ruby 3.1.0 released https://www.ruby-lang.org/ja/news/2021/12/25/ruby-3-1-0-released/
- 2022/05/20 Steep 1.0.0 https://twitter.com/soutaro/status/1527650420650577920
- 2022/09/06 Rack 3.0.0 https://github.com/rack/rack/blob/3.0.0/CHANGELOG.md
- 2022/09/08-10 RubyKaigi 2022 https://rubykaigi.org/2022/
- 2022/10/03 Ruby 3に対応したRuby技術者認定試験の配信を開始 https://www.ruby.or.jp/ja/certification/examination/version3.html
- 2022/10/13-14 Euruko 2022 (hybrid) https://2022.euruko.org/
- 2022/10/21-22 Kaigi on Rails 2022 (virtual) https://kaigionrails.org/2022/
- 2022/11/14 Rails Foundation設立 https://rubyonrails.org/2022/11/14/the-rails-foundation
- 2022/11/15-17 RubyConf Mini 2022 https://www.rubyconfmini.com/
- 2022/11/29-12/01 RubyConf 2022
- 2022/11/22 Hanami 2.0.0 https://hanamirb.org/blog/2022/11/22/announcing-hanami-200/
- 2022/12/25 Ruby 3.2.0 released https://www.ruby-lang.org/ja/news/2022/12/25/ruby-3-2-0-released/
- 2023/01/11-12 RubyConf: Home Edition https://www.rubyconf.org/home-edition