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statementVerified

The first voyage returns to Lisbon as a completed round voyage

A completed round voyage is an industrial-route demonstration. In the causal graph this event strengthens the driver Industrial-Policy Activism.

Read the full account

Public English prints return to Portugal with a surviving portion of the fleet. A completed round voyage is an industrial-route demonstration. Twin of scurvy deaths.

Context

Shared crews and ships. High confidence on the received return.

Vasco da Gama Shared work with other named actors remains in the record.

Vasco da Gama’s documented role is bounded by other offices and collaborators named in the sources below.

Conventional years are c. 1460s–1524.

Why it matters

Printed 1499 return is not a modern AIS track.

Who was responsible

Contribution type and responsibility level for each recorded actor — not sole-author shorthand.

  • Vasco da Gama

    Person

    Direct responsibility

    responsibility level 0.4 · verified

What changed

Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.

    1. FactThe first voyage returns to Lisbon as a completed round voyage
    2. strengthensDriverIndustrial-Policy Activism

    impact weight 0.5 · Effect from 9 September 1499 · verified

    Printed 1499 return is not a modern AIS track.

Evidence

The sources behind this fact and its verification state.

Verified2 sources on file
  1. 1.Britannica — Vasco da GamaEncyclopaedia Britannica · High credibility · verified
  2. 2.A Journal of the First Voyage of Vasco da Gama — public EnglishProject Gutenberg / Hakluyt translation · High credibility · verified
What the sources establish

Vasco da Gama did not file a later UNESCO form, a later Loeb colophon, or a later museum label as a personal act. Driver industrial-policy-activism is attached because the Significance sentence names a mechanism from The first voyage returns to Lisbon as a completed round voyage at 1499-09-09, not because a standing driver list needed coverage. Official page: https://www.britannica.com/biography/Vasco-da-Gama (opens in a new tab). Independent page: https://www.gutenberg.org/ebooks/22599 (opens in a new tab).

Causal path

How this event connects to drivers and indicators in the graph.

  1. ActorVasco da Gama
  2. contributed toFactThe first voyage returns to Lisbon as a completed round voyage
  3. strengthensDriverIndustrial-Policy Activism

Cite this page

Factrail. (2026). The first voyage returns to Lisbon as a completed round voyage. Factrail. https://factrail.ai/facts/vdg-return-1499-print

https://factrail.ai/facts/vdg-return-1499-print

Accessed 16 October 2026.

By the Factrail desk · Method: how we source and score · Last reviewed

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