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The Ledger
On this day

July 20th

1 event recorded on The Ledger.

  1. 1969
    The Rise

    Apollo 11 lands on the moon

    Apollo 11 lands on the lunar surface, carrying trajectory calculations prepared by Katherine Johnson and the West Computing team at NASA Langley.

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Timeline data: 159 events across The Ledger. See the full 400-year timeline →