1926 - Postum offers the Jell-O account on the condition the agency move from Philadelphia to New York, which it does.
1932 - Raymond Rubicam hires George Gallup of Northwestern University to start the first advertising agency research department.
1934 - Y&R starts an international division, opening a Montreal office.
1943 - Y&R opens an office in London, its first outside North America.
1944 - Raymond Rubicam retires. Sig Larmon is promoted from Y&R president to chairman (and ultimately CEO).
1951 - The agency produces the first-ever color TV spot, for Jell-O pudding and pie filling.
1954 - Y&R creates the first demonstration spot for Remington, showing an electric razor shaving a peach.
1959 - Y&R is one of the first agencies to use actors rather than announcers in its advertising.
1973 - Y&R acquires Sudler & Hennessey, a health-care communications agency. Y&R acquires Wunderman, Ricotta & Kline, a direct response agency.
1976 - Y&R Special Markets merges with collateral and design firm Cato Johnson Associates.
1979 - Y&R completes several acquisitions, adding Marsteller Advertising, Burson-Marsteller and Champman Direct Marketing, a New York agency specializing in b-to-b direct response.
1980 - Y&R becomes the world's largest agency, surpassing J. Walter Thompson in billings and gross income.
1989 - Y&R establishes joint ventures in Hungary and Moscow, making it the first American shop to enter into a venture with a Soviet agency.
1992 - Cato Johnson and Wunderman Worldwide merge to become Wunderman Cato Johnson. WCJ is renamed Impiric in 2000.
1998 - Y&R becomes a public company. Y&R launches its $9 billion global media management company, The Media Edge. Thomas D. Bell Jr. becomes president-CEO of Y&R Advertising, from president-CEO of Burson-Marsteller Worldwide.
1999 - Y&R London's office buys Rainey Kelly Campbell Roalfe for $40 million. Y&R buys a minority stake in Harris Interactive, the online offshoot of market research and polling company Harris.