The <a href="https://en.wikipedia.org/wiki/Katipunan" id="mwaw" rel="mw:WikiLink" title="Katipunan">Katipunan</a> is established, the discovery of which by <a href="https://en.wikipedia.org/wiki/Captaincy_General_of_the_Philippines" id="mwbA" rel="mw:WikiLink" title="Captaincy General of the Philippines">Spanish authorities</a> initiated the <a href="https://en.wikipedia.org/wiki/Philippine_Revolution" id="mwbQ" rel="mw:WikiLink" title="Philippine Revolution">Philippine Revolution</a>.