Achilles heel

UFP Historical Society

First Appearance	TOS 09 (15 Dec 1966)
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Prime Timeline
(The root of all realities)

An Achilles heel was a weak or vulnerable spot,^[1] named for the hero of the Trojan War on Earth, Achilles, who could not be defeated except by a wound to his vulnerable heel.^[2]

Notes and References

↑ Roddenberry, Gene (Executive Producer). "Balance of Terror". Star Trek, season 1, episode 14 (Production number 09). Directed by Vincent McEveety. Written by Paul Schneider. Desilu Productions. 15 December 1966.
↑ Trimble, Bjo (Author). Star Trek Concordance. Star Trek. Book , revised and updated edition. Citadel Press. 1995.

[TOS09-1] Roddenberry, Gene (Executive Producer). "Balance of Terror". Star Trek, season 1, episode 14 (Production number 09). Directed by Vincent McEveety. Written by Paul Schneider. Desilu Productions. 15 December 1966.

[Concordance-2] Trimble, Bjo (Author). Star Trek Concordance. Star Trek. Book , revised and updated edition. Citadel Press. 1995.

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