| 1863 |
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Edmund Sharp, founder of JSM, starts practicing in Hong Kong |
| 1881 |
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Adolf Kraus and Levy Mayer form a partnership in Chicago |
| 1885 |
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Firm becomes Kraus, Mayer & Brackett |
| 1887 |
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Brackett resigns and firm becomes Kraus, Mayer & Stein |
| 1890 |
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Sharp's firm first assumes the name Johnson Stokes & Master (former name of JSM) |
| 1893 |
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The firm changes name to Moran, Kraus, Mayer & Stein after Illinois Appellate Judge Thomas A. Moran joins the practice. Stein is elected Cook County judge that year and the firm becomes Moran, Kraus & Mayer |
| 1893 |
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The firm hires its first female associate, Marion Drake, who became the head of the Cook County Suffrage Alliance in 1924 |
| 1895 |
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UK firm Rowe & Maw founded in London |
| 1897 |
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The firm name becomes Moran, Mayer & Meyer after Kraus resigns |
| 1899 |
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John Rowe dies and Frederick James Maw continues the UK practice with Rowe’s name out of respect |
| 1904 |
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Firm name becomes Mayer, Meyer & Austrian after death of Moran |
| 1909 |
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Henry Russell Platt joins and the firm name becomes Mayer, Meyer, Austrian & Platt, its title for the next 46 years |
| 1926 |
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Frederick James Maw dies; his nephew, Frederick Graham Maw, takes over Rowe & Maw |
| 1954 |
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Firm changes name to Mayer, Friedlich, Spiess, Tierney, Brown & Platt after death of Carl Meyer |
| 1965 |
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The US firm’s first overseas office opens in Paris. The office is moved to London in 1974 |
| 1970 |
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The firm becomes Mayer, Brown & Platt and opens an office in Washington DC |
| 1973 |
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Frederick Graham Maw resigns from the partnership |
| 1974 |
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The firm promotes its first female partner, Susan Getzendanner, who later became first woman judge in United States District Court for the Northern District of Illinois, Eastern Division |
| 1975 |
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Rowe & Maw merges with Beddington, Hughes & Hobart |
| 1976 |
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Nigel Graham Maw becomes senior partner at Rowe & Maw |
| 1978 |
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The firm opens an office in New York City |
| 1983 |
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The firm opens an office in Houston |
| 1985 |
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The firm opens an office in Los Angeles |
| 1991 |
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Debora de Hoyos becomes the firm’s managing partner. She is the first woman to be selected as managing partner of a major US law firm and holds the position until June 2007 |
| 1992 |
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The firm opens an office in Brussels; begins alliance relationship with Jáuregui, Navarrete y Nader in Mexico City |
| 1993 |
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The firm opens an office in Berlin |
| 1994 |
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The firm opens an office in Cologne |
| 1998 |
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The firm opens an office in Charlotte by merging with Blanchfield Cordle & Moore, P.A. |
| 2001 |
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The firm opens a new Paris office by merging with Lambert & Lee; opens a Frankfurt office by merging with Gaedertz Rechtanswalte; and opens a Palo Alto office |
| 2002 |
|
Mayer, Brown & Platt combines with Rowe & Maw, forming Mayer, Brown, Rowe & Maw LLP. Mayer, Brown & Platt’s existing London office joined the larger Rowe & Maw office |
| 2006 |
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Alliance relationship formed with Tonucci & Partners, an Italian law firm with offices across Italy and in Romania and Albania |
| 2007 |
|
A very busy year: the firm opens an office in Hong Kong; establishes an alliance relationship with Ramón & Cajal, a Spanish law firm based in Madrid; opens an office in São Paulo; officially changes its name to Mayer Brown; and announces the combination of Mayer Brown and JSM, a leading Asia law firm |
| 2008 |
|
Combination of Mayer Brown and JSM is finalized. The Mayer Brown Practices (including three separate entities: Mayer Brown LLP, Mayer Brown International LLP and JSM) are known as Mayer Brown JSM in Asia |
