- Chappell & Co. opens for business on London's Bond Street as a shop for sheet music and musical instruments.
- Ludwig VanBeethoven sends a letter to a friend praising Chappell & Co. as "one of the best publishers" in the business.
- Warner Bros. Studios purchases exclusive rights to the Vitaphone, allowing them to synchronize music and effects to silent film.
- Louis Dreyfus acquires Chappell & Co. beginning a period of rapid expansion for the company.
- Jack Warner founds Music Publishers Holding Company to acquire music copyrights for use in films.
- Ahmet Ertegun and Herb Abramson found Atlantic Records.
- Jac Holzman founds Elektra Records
- Word Records founded by Jarrell McCracken as one of the first companies in contemporary Christian music.
- Jerry Wexler joins Atlantic Records.
- Jack Warner founds Warner Bros. records as a soundtrack factory for Warner Bros. movie studios.
- Warner Bros. get its first No. 1 hit, Bob Newhart's Button Down Mind of Bob Newhart.
- Frank Sinatra founds Reprise Records and names Mo Ostin to lead it.
- Warner Bros. and Reprise merge.
- Jac Holzman founds Nonesuch Records as a licensee of classical music.
- Seymour Stein and Richard Gotterher found Sire Productions, which is later renamed Sire Records.
- Seven Arts buys Warner Bros. Studios, renames itself Warner-Seven Arts and acquires Atlantic Records.
- Seven Arts Records of Canada established.
- Steve Ross's Kinney National Co. acquires Warner-Seven Arts.
- Elektra and Nonesuch become part of Kinney National.
- Kinney National becomes Warner Communications and forms Warner-Elektra-Atlantic (WEA Corp.), the first major music distribution company in the U.S., marking the origins of the Warner Music Group.
- Nesuhi Ertegun forms WEA International, forming the basis of WMG's international division; WEA Australia and WEA Japan are created followed by WEA Germany, WEA France and WEA Canada.
- David Geffen founds Asylum Records.
- Warner purchases Asylum Records.
- WEA International opens offices in New Zealand.
- Famed graphic designer, Saul Bass creates the image that later becomes the WMG corporate logo.
- WEA International opens offices in Italy and the Netherlands.
- WEA International enters Latin America.
- WMG acquires half of Sire Records.
- WEA International opens offices in Southeast Asia.
- Roadrunner Records is launched in the Netherlands.
- WMG acquires Sire Records in full.
- Randy Thornton and Mike Dowdle form Non-Stop Music, a music production library business, in Salt Lake City.
- Rykodisc founded by Arthur Mann, Rob Simonds, Doug Lexa and Don Rose.
- WMG creates WEA Manufacturing, its first CD manufacturing plant.
- Warner Communications acquires Chappell & Co., creates Warner/Chappell Music Publishing, at the time the world's largest music publisher.
- Warner Communications merges with Time, Inc. to form Time Warner.
- WEA Latina renamed Warner Music Latina.
- Rhino and Atlantic form worldwide distribution agreement.
- Alternative Distribution Alliance founded.
- WMG offers a library of digital downloads in the U.S. and Canada for the first time.
- WMG acquires Word Entertainment
- WMG begins selling its music through iTunes
- WMG becomes the first major music company to deliver a comprehensive wireless music service using a leading wireless provider platform.
- WMG sells its first MP3 downloads through AOL.
- Time Warner announces the sale of WMG to a private investment team led by Edgar Bronfman, Jr.
- WMG partners with Sprint to create comprehensive streaming music service.
- WMG sells WEA Manufacturing to Cinram International.
- WMG launches industry-leading environmental initiatives, which were rebranded "WMGreen" in 2008.
- WMG acquisition closes.
- WMG listed on the New York Stock Exchange with the ticker WMG.
- Elektra founder Jac Holzman forms Cordless Recordings, one of the industry's first online-only labels, and rejoins WMG as a special advisor to the Chairman.
- WMG purchases Ryko Corporation and forms Independent Label Group with the mission of empowering labels and artists in the independent music community.
- WMG announces it will begin selling DRM-free music through Amazon.com's MP3 music store.
- WMG enters joint venture with Sinatra family to form Frank Sinatra Enterprises.
- WMG purchases majority stake in Japanese management firm Taisuke.
- WMG acquires a majority stake in Roadrunner Records. Warner/Chappell acquires production music production library company, Non-Stop Music.
- Fortune magazine names WMG one of America's "Most Admired Companies."
- Atlantic Records recognized in the New York Times as the first record label to achieve more than 50% of its music sales in the U.S. from digital products.
- WMG partners with two other major labels and MySpace to form the MySpace Music joint venture.
- Fast Company magazine names WMG one of the world's "50 Most Innovative Companies."
- WMG celebrates the 60th anniversary of Elektra Records.
- In Q4 2010, WMG announces that new revenue streams (digital and non-traditional businesses) made up 40% of company revenue, up from essentially zero in 2004.
- The percentage of expanded rights deals for WMG's active global recorded music roster passes 50% for the first time.
- Access Industries, Inc. acquires WMG for $3.3 billion. As a result WMG becomes a wholly-owned subsidiary of Access and is no longer publicly-traded on the NYSE.
- WMG acquired the Parlophone Label Group, which is comprised of the historic Parlophone, Chrysalis and Ensign labels in the United Kingdom, EMI Classics and Virgin Classics and the EMI operating companies in Belgium, Czech Republic, Denmark, France, Norway, Poland, Portugal, Slovakia, Spain and Sweden.