Editing 1834 (section)

=== April–June ===
* [[April 10]] – The LaLaurie mansion in New Orleans burns, and Madame [[Marie Delphine LaLaurie]] flees to France.      
* [[April 14]] – The [[Whig Party (United States)|Whig Party]] is officially named by [[United States Senator]] [[Henry Clay]].
* [[April 22]] – [[Spanish Empire|Spain]], [[July Monarchy|France]], [[Kingdom of Portugal|Portugal]] and the [[United Kingdom of Great Britain and Ireland|United Kingdom]] sign the [[1834 Quadruple Alliance|Quadruple Alliance]].
*  [[May 9]] – The founder of the [[Second Saudi State]], Imam Turki bin Abdullah Al Saud, is assassinated after the Friday prayers by Ibrahim Hamza, following the orders of his cousin Mishari.
* [[May 19]] – The [[Syrian Peasant Revolt (1834–35)]] erupts in [[Muhammad Ali dynasty|Egyptian-ruled]] [[Ottoman Syria]], encompassing peasant uprisings in [[Peasants' revolt in Palestine|Palestine and Transjordan]], at [[Galilee]] and [[Hauran]] and at the [[Alawite revolt (1834–35)|Syrian coast]]; the rebellions are suppressed with harsh military response leading to thousands of deaths and mostly subdued by August, though the Syrian coast uprising lasts until early 1835.
* [[June 7]] – Greek independence: General [[Theodoros Kolokotronis]] is sentenced to death for [[treason]], for resisting the rule of [[Otto of Greece]] (he is released the following year).
* [[June 21]] – American inventor and businessman [[Cyrus McCormick]] is granted a patent for his mechanical reaper.