The United States launches <i id="mw7w"><a href="https://en.wikipedia.org/wiki/Landsat_1" id="mw8A" rel="mw:WikiLink" title="Landsat 1">Landsat 1</a></i>, the first Earth-resources <a href="https://en.wikipedia.org/wiki/Satellite" id="mw8Q" rel="mw:WikiLink" title="Satellite">satellite</a>.