| 1840 | Iwakichi Kajima begins carpentry business in Edo (present day Tokyo) |
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| 1860 | Pioneers first western-style buildings in Japan (Yokohama) |
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| 1880 | Kajima Corporation established |
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| 1924 | Completes Japan's first concrete dam |
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| 1949 | Establishment of Research and Development Center |
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| 1963 | Ranked world's largest construction company. Builds facilities for Tokyo Olympic Games |
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| 1965 | Completes Japan's first skyscraper |
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| 1969 | Winning of Japanese Supreme Court Design Competition |
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| 1975 | Starts work on the International Trade Center in Berlin |
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| 1982 | Receives Deming Prize, for Total Quality Management |
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| 1983 | Paris Opera House Design Competition - 2nd Prize |
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| 1985 | Kajima Europe established. Completes world's longest tunnel |
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| 1986 | Offices opened in London, Amsterdam, Frankfurt, Paris and Barcelona |
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| 1990 | Completes tallest building in Europe - the Messe Turm in FrankfurtRegistered on the London Stock Market |
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| 1995 | Renovates Suez Canal tunnel |
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| 1998 | Completes the world's longest suspension bridge |
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| 2000 | Sony Centre opens in Berlin |
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| 2002 | Prague & Warsaw offices opened |
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