Creative Commons Attribution 4.0 International (CC BY 4.0)

This licence applies to the DATA in this repository: every file under
`data/`, and the tabular content reproduced inside `README.md`.

The code in `scripts/` is licensed separately under the MIT licence; see
`scripts/LICENSE-MIT`.

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You are free to:

  Share  - copy and redistribute the material in any medium or format
  Adapt  - remix, transform, and build upon the material for any purpose,
           even commercially

The licensor cannot revoke these freedoms as long as you follow the licence
terms.

Under the following terms:

  Attribution - You must give appropriate credit, provide a link to the
  licence, and indicate if changes were made. You may do so in any reasonable
  manner, but not in any way that suggests the licensor endorses you or your
  use.

  No additional restrictions - You may not apply legal terms or technological
  measures that legally restrict others from doing anything the licence
  permits.

Notices:

  You do not have to comply with the licence for elements of the material in
  the public domain or where your use is permitted by an applicable exception
  or limitation.

  No warranties are given. The licence may not give you all of the permissions
  necessary for your intended use. For example, other rights such as publicity,
  privacy, or moral rights may limit how you use the material.

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Attribution string we ask you to use:

  Visa Requirements Dataset, VisaChecker.org, CC BY 4.0,
  https://github.com/maxix7/visa-requirements-dataset

The full legal text of CC BY 4.0 is at:

  https://creativecommons.org/licenses/by/4.0/legalcode

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UPSTREAM

The base matrix this dataset starts from is the open Passport Index data
(imorte/passport-index-data, https://github.com/imorte/passport-index-data),
published under the MIT licence. It is credited in `data/datapackage.json`
under `sources` and in the README. Every value that departs from it carries a
government source of its own; the values that do not depart from it are that
upstream's work, not ours, and we say so rather than absorbing it silently.
That is not politeness. A dataset whose stated purpose is that visa tables
circulate as unsourced copies of copies has no business being one.

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A NOTE ON WHAT THIS LICENCE DOES AND DOES NOT COVER

Individual facts - "a Portuguese passport holder may enter Japan without a
visa" - are not copyrightable anywhere we are aware of. The licence covers the
compilation: the selection, the normalisation into a single vocabulary, the
per-pair verification dates, and the change journal. If you take three facts
out of this repository you do not need our permission. If you take the table,
please credit it, because the credit is the only thing we get back for the
work of keeping it correct.