<a href="https://en.wikipedia.org/wiki/Mongkut" id="mwNg" rel="mw:WikiLink" title="Mongkut">Rama IV</a> is crowned <a href="https://en.wikipedia.org/wiki/Monarchy_of_Thailand" id="mwNw" rel="mw:WikiLink" title="Monarchy of Thailand">King</a> of <a href="https://en.wikipedia.org/wiki/Thailand" id="mwOA" rel="mw:WikiLink" title="Thailand">Thailand</a> after the death of his half-brother, <a href="https://en.wikipedia.org/wiki/Rama_III" id="mwOQ" rel="mw:WikiLink" title="Rama III">Rama III</a>.<sup about="#mwt43" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-6"}}' id="cite_ref-6" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_3#cite_note-6" id="mwOg" style="counter-reset: mw-Ref 6;"><span class="mw-reflink-text" id="mwOw">[6]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-6"><cite about="#mwt37" class="citation book cs1" id="CITEREFBowman2000">Bowman, John Stewart (2000). <a class="external text" href="https://books.google.com/books?id=YkqsAgAAQBAJ" id="mwBwk" rel="mw:ExtLink nofollow"><i id="mwBwo">Columbia Chronologies of Asian History and Culture</i></a>. New York: Columbia University Press. p.<span id="mwBws" typeof="mw:Entity"> </span>515. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBww" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBw0" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780231110044" id="mwBw4" rel="mw:WikiLink" title="Special:BookSources/9780231110044"><bdi id="mwBw8">9780231110044</bdi></a></cite><span about="#mwt37" class="Z3988" id="mwBxA" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Columbia+Chronologies+of+Asian+History+and+Culture&amp;rft.place=New+York&amp;rft.pages=515&amp;rft.pub=Columbia+University+Press&amp;rft.date=2000&amp;rft.isbn=9780231110044&amp;rft.aulast=Bowman&amp;rft.aufirst=John+Stewart&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DYkqsAgAAQBAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+3"></span>; <link about="#mwt40" data-mw="{&quot;name&quot;:&quot;templatestyles&quot;,&quot;attrs&quot;:{&quot;src&quot;:&quot;Module:Citation/CS1/styles.css&quot;},&quot;body&quot;:{&quot;extsrc&quot;:&quot;&quot;},&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;cite book&quot;,&quot;href&quot;:&quot;./Template:Cite_book&quot;},&quot;params&quot;:{&quot;last1&quot;:{&quot;wt&quot;:&quot;Soonthornthum&quot;},&quot;first1&quot;:{&quot;wt&quot;:&quot;Boonrucksar&quot;},&quot;last2&quot;:{&quot;wt&quot;:&quot;Orchiston&quot;},&quot;first2&quot;:{&quot;wt&quot;:&quot;Wayne&quot;},&quot;chapter&quot;:{&quot;wt&quot;:&quot;King Rama IV: Astronomer and 'The Father of Thai Science'&quot;},&quot;title&quot;:{&quot;wt&quot;:&quot;Exploring the History of Southeast Asian Astronomy: A Review of Current Projects and Future Prospects and Possibilities&quot;},&quot;editor-last1&quot;:{&quot;wt&quot;:&quot;Soonthornthum&quot;},&quot;editor-first1&quot;:{&quot;wt&quot;:&quot;Boonrucksar&quot;},&quot;editor-last2&quot;:{&quot;wt&quot;:&quot;Orchiston&quot;},&quot;editor-first2&quot;:{&quot;wt&quot;:&quot;Wayne&quot;},&quot;location&quot;:{&quot;wt&quot;:&quot;Cham, Switzerland&quot;},&quot;publisher&quot;:{&quot;wt&quot;:&quot;Springer&quot;},&quot;date&quot;:{&quot;wt&quot;:&quot;2021&quot;},&quot;isbn&quot;:{&quot;wt&quot;:&quot;9783030627775&quot;},&quot;url&quot;:{&quot;wt&quot;:&quot;https://books.google.com/books?id=aUw2EAAAQBAJ&quot;},&quot;page&quot;:{&quot;wt&quot;:&quot;253&quot;}},&quot;i&quot;:0}}]}" href="mw-data:TemplateStyles:r1215172403" id="mwBxE" rel="mw-deduplicated-inline-style" typeof="mw:Extension/templatestyles mw:Transclusion"/><cite about="#mwt40" class="citation book cs1" id="CITEREFSoonthornthumOrchiston2021">Soonthornthum, Boonrucksar; Orchiston, Wayne (2021). "King Rama IV: Astronomer and 'The Father of Thai Science'<span class="cs1-kern-right" id="mwBxI"></span>". In Soonthornthum, Boonrucksar; Orchiston, Wayne (eds.). <a class="external text" href="https://books.google.com/books?id=aUw2EAAAQBAJ" id="mwBxM" rel="mw:ExtLink nofollow"><i id="mwBxQ">Exploring the History of Southeast Asian Astronomy: A Review of Current Projects and Future Prospects and Possibilities</i></a>. Cham, Switzerland: Springer. p.<span id="mwBxU" typeof="mw:Entity"> </span>253. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBxY" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBxc" typeof="mw:Entity"> </span><a href="./Special:BookSources/9783030627775" id="mwBxg" rel="mw:WikiLink" title="Special:BookSources/9783030627775"><bdi id="mwBxk">9783030627775</bdi></a>.</cite><span about="#mwt40" class="Z3988" id="mwBxo" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=King+Rama+IV%3A+Astronomer+and+%27The+Father+of+Thai+Science%27&amp;rft.btitle=Exploring+the+History+of+Southeast+Asian+Astronomy%3A+A+Review+of+Current+Projects+and+Future+Prospects+and+Possibilities&amp;rft.place=Cham%2C+Switzerland&amp;rft.pages=253&amp;rft.pub=Springer&amp;rft.date=2021&amp;rft.isbn=9783030627775&amp;rft.aulast=Soonthornthum&amp;rft.aufirst=Boonrucksar&amp;rft.au=Orchiston%2C+Wayne&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DaUw2EAAAQBAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+3"></span></span>