Who said “That's one small step for a man, one giant leap for mankind.”?

Verified

Neil Armstrong. A published source records them saying or writing it.

SourceWords said when Armstrong first stepped onto the Moon (20 July 1969) One Small Step, transcript of Apollo 11 Moon landing. In the actual sound recordings he apparently fails to say "a" before "man" and says: "That's one small step for man, one giant leap for mankind.

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“That's one small step for a man, one giant leap for mankind.”
VerifiedWords said when Armstrong first stepped onto the Moon (20 July 1969) One Small Step, transcript of Apollo 11 Moon landing. In the actual sound recordings he apparently fails to say "a" before "man" and says: "That's one small step for man, one giant leap for mankind. · evidenceDreams
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For academic work, cite the original where you can: Words said when Armstrong first stepped onto the Moon (20 July 1969) One Small Step, transcript of Apollo 11 Moon landing. In the actual sound recordings he apparently fails to say "a" before "man" and says: "That's one small step for man, one giant leap for mankind..

APA

Armstrong, N. (n.d.). That's one small step for a man, one giant leap for mankind. [Quotation]. Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/13789-thats-one-small-step-for-a-man-one/

MLA

Armstrong, Neil. “That's one small step for a man, one giant leap for mankind.” Famous Quotations Network, https://www.famous-quotations.com/quotes/13789-thats-one-small-step-for-a-man-one/. Accessed 24 Oct. 2026.

Chicago

Armstrong, Neil. “That's one small step for a man, one giant leap for mankind.” Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/13789-thats-one-small-step-for-a-man-one/.