Hronika osvoeniya kosmosa: 1921 god.
7.01.2001 0:58 | A. B. Zheleznyakov/Enciklopediya Kosmonavtika
| 01.03.1921 | V Moskve dlya razrabotki raket na bezdymnom porohe organizovana Laboratoriya dlya razrabotki izobretenii Nikolaya Ivanovicha TIHOMIROVA (vposledstvii Gazodinamicheskaya laboratoriya). |
| 07-09.1921 | V SShA Robert GODDARD provel ispytaniya pervyh eksperimental'nyh zhidkostnyh raketnyh dvigatelei. |
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