| Country | Date | |
|---|---|---|
| West Germany | 24 November 1966 | |
| Finland | 25 November 1966 | |
| Sweden | 28 November 1966 | |
| France | 1 December 1966 | |
| UK | 30 December 1966 | |
| USA | 21 February 1967 | |
| Japan | 25 February 1967 |
| Egymillió évvel ezelött | Hungary |
| Eine Million Jahre vor unserer Zeit | West Germany |
| Ena ekatommyrio hronia p.H. | Greece |
| Giganternas kamp | Sweden |
| Hace un millón de años | Spain |
| Milion lat przed nasza era | Poland |
| Miljoona vuotta eKr. | Finland |
| O kataklysmos | Greece (reissue title) |
| Quando o Mundo Nasceu | Portugal |
| Un milione di anni fa | Italy |
| Un millón de años A.C. | Venezuela |
| Un million d'années avant J.C. | France |
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