Segredos Da História: As Alunagens
| Film | National Geographic: History's Secrets |
| Format | DVD |
| Region | 2 |
| Runtime | 50 Minutes |
| Audio | Dolby Digital 2.0 |
| Subtitles | Portuguese |
| Languages | English And Portuguese |
| Aspect Ratio | 16:9 |
| Color | Color |
| Video Standard | PAL |
| Packaging | Keep case |
| Classification | 6 |
| Barcode | 5 601887 538768 |
| Catalog Number | 661961D |
| Brand | National Geographic, ZON Lusomundo |
| Copyright © | NGHT, Inc. |
| Distributed | Lusomundo Audiovisuais, S.A. |
| Territory | Portugal |
| Notes | Nº De Registo 617/2009 Portuguese Release |
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