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| 1920 | The formation of the Radio Research Board |
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| 1920-24 | Atmospheric Research Station at Aldershot |
| 1924 | The first ionospheric layer is discovered. |
| 1927 | The birth of the Radio Research Station |
| 1932 | The Second International Polar Year |
| 1932 - | Routine sounding of the ionosphere started at Slough |
| 1935 | The invention of Radar |
| 1939 | The outbreak of the second World War. |
| 1948 | More Outstations are Created |
| 1946-1957 | Post war developments |
| 1957 | The International Geophysical Year (IGY). |
| 1957 | Sputnik 1 launches the space age |
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| 1963- | Atmospheric Rocketry studies |
| 1965 | The station renamed 'Radio and Space Research Station' |
| 1973 | Site renamed The Appleton Laboratory |
| 1979 | Merger forms the Rutherford Appleton Laboratory |
| 1995 | The formation of CCLRC |
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