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  <h1 style="color:#667eea;margin-bottom:8px;">Data License</h1>
  <p style="color:#888;font-size:.85rem;margin-bottom:20px;">Middle of Countries Geographic Centroid Database</p>

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    Open Academic License (OAL-NC 1.0)
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  <p style="font-size:.95rem;line-height:1.8;margin:20px 0;">The Middle of Countries geographic centroid database is released under the <strong>Open Academic License (Non-Commercial) version 1.0</strong>. This license grants broad freedoms for educational and research use while protecting the integrity of the data and requiring attribution.</p>

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      <h3><i class="fa fa-check-circle allowed"></i> You MAY</h3>
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        <li>Use the data for academic research</li>
        <li>Use in educational materials and courses</li>
        <li>Cite in scientific publications</li>
        <li>Use in open-source projects (with attribution)</li>
        <li>Share and redistribute non-commercially</li>
        <li>Create derivative works for non-commercial purposes</li>
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        <li>Use in non-profit applications</li>
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      <h3><i class="fa fa-times-circle forbidden"></i> You MAY NOT (without permission)</h3>
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        <li>Use in commercial software or APIs</li>
        <li>Sell or monetize the data</li>
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        <li>Claim the data as your own work</li>
        <li>Use in advertising or marketing</li>
        <li>Redistribute commercially</li>
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    <h3><i class="fa fa-quote-left" style="color:#667eea;"></i> Required Attribution</h3>
    <p style="font-size:.9rem;margin:0 0 12px;">When using Middle of Countries data, you must include the following attribution in a visible location:</p>
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      Geographic centroid data © 2025 Middle of Countries (middleofcountries.github.io)<br>
      Licensed under Open Academic License (OAL-NC 1.0)<br>
      Source data: Natural Earth / GADM 4.1 / WGS84 Ellipsoid
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    <h3><i class="fa fa-building" style="color:#667eea;"></i> Commercial Licensing</h3>
    <p style="font-size:.9rem;margin:0 0 12px;">For commercial use, please contact us to discuss licensing terms. We offer flexible commercial licenses for businesses, startups, and enterprise applications.</p>
    <a href="mailto:middleofcountries@gmail.com" style="display:inline-flex;align-items:center;gap:8px;background:#667eea;color:#fff;padding:10px 20px;border-radius:8px;text-decoration:none;font-size:.88rem;font-weight:600;">
      <i class="fa fa-envelope"></i> middleofcountries@gmail.com
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    <h3><i class="fa fa-database" style="color:#667eea;"></i> Source Data Licenses</h3>
    <p style="font-size:.9rem;margin:0 0 8px;">The boundary data used to calculate geographic centroids is sourced from:</p>
    <ul style="font-size:.88rem;line-height:1.8;padding-left:20px;margin:0;">
      <li><strong>Natural Earth</strong> — Public Domain (naturalearthdata.com)</li>
      <li><strong>GADM 4.1</strong> — Academic use license (gadm.org)</li>
      <li><strong>datasets/geo-countries</strong> — Open Data Commons (github.com/datasets/geo-countries)</li>
    </ul>
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  <p style="font-size:.82rem;color:#888;margin-top:24px;">This license was last updated on January 1, 2025. For questions: <a href="mailto:middleofcountries@gmail.com" style="color:#667eea;">middleofcountries@gmail.com</a></p>
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Interactive map visualizing the geographic centers (centroids) of all countries. An educational and academic study on global geography.

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