From Wikipedia, the free encyclopedia
E21 can refer to:
- BMW E21, an automobile platform
- HMS E21
- European route E21
- DRG series E 21, different locomotives of the German National Railroad
- E21 - Code that it designates the Astronomical observatory of Norm Roses, Leyburn
- E21 - code ECHO of the Nimzo-Indian Defence, opening of chess
- Eyeshield 21, a manga based on American Football
- Economics21, or e21, web portal of the Manhattan Institute for Policy Research
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