Editing 1828 (section)

=== January–March ===

* [[January 4]] – [[Jean Baptiste Gay, vicomte de Martignac]] succeeds the [[Jean-Baptiste de Villèle|Comte de Villèle]], as [[Prime Minister of France]].
* [[January 8]] – The [[Democratic Party of the United States]] is organized.
* [[January 22]] – [[Arthur Wellesley, 1st Duke of Wellington]] succeeds [[F. J. Robinson, 1st Viscount Goderich|Lord Goderich]] as [[Prime Minister of the United Kingdom]].
* [[February 10]] – "[[Black War]]": In the [[Cape Grim massacre]] – About 30 [[Aboriginal Tasmanians]] gathering food at a beach are probably ambushed, shot with muskets and killed by four indentured "servants" (or convicts) employed as shepherds for the [[Van Diemen's Land Company]] as part of a series of reprisal attacks, with the bodies of some of the men thrown from a 60 metre (200 ft) cliff.<ref>{{Cite book|last=Clements|first=Nicholas|title=The Black War|publisher=University of Queensland Press|year=2014|location=Brisbane|isbn=978-0-70225-006-4}}</ref>
* [[February 19]] – The [[Boston Society for Medical Improvement]] is established in the United States.
* [[February 21]] – The first American-Indian newspaper in the United States, the ''[[Cherokee Phoenix]]'', is published.
* [[February 22]] – [[Treaty of Turkmenchay]]: By this Russian-Persian peace treaty signed on February 10 at [[Torkamanchay]], Persia (Iran), the latter country is forced irrevocably to cede the territories of the [[Erivan Khanate]] (most of modern-day central [[Armenia]] and the northern [[Iğdır Province]] of Turkey), the [[Nakhichevan Khanate]] (most of the modern-day [[Nakhchivan Autonomous Republic]] of [[Azerbaijan]]), the remainder of the [[Talysh Khanate]] (southeastern Azerbaijan), and the [[Ordubad District|Ordubad]] and Mughan regions (also part of modern-day Azerbaijan) to Imperial Russia. By this and the [[Treaty of Gulistan]] (1813) it has now lost all its territories north of the [[Aras (river)|Aras]] River, comprising modern-day [[Georgia (country)|Georgia]], [[Dagestan]], Azerbaijan and Armenia to Russia. [[Armenians]] from [[Azerbaijan (Iran)|Persian Azerbaijan]] are to be resettled in the [[Caucasus]].
* [[March 3]] – [[Pedro I of Brazil|Dom Pedro I]], [[Emperor of Brazil]] and former [[King of Portugal]], signs a document "to complete my abdication of the Portuguese crown" (made in 1826), to renounce all claims in favor of his daughter [[Maria II of Portugal|Queen Maria II]], and to declare "indubitable proof" that he wishes Portugal to be "perpetually separated from the Brazilian nation....in such a manner as may render even the idea of reunion impracticable."<ref>{{cite book|author="A Well-Wisher" ([[William Walton (writer)|William Walton]])|title=Portugal; or, Who is the lawful Successor to the Throne?|location=London|publisher=John Richardson|year=1828|page=126}}</ref>
* [[March 18]] – [[Simón Bolívar]], [[President of Colombia]] (and former President of [[Venezuela]], [[Peru]] and [[Bolivia]]), departs from the capital at [[Bogotá]] in order to help his ally, General [[José Antonio Páez]], suppress an uprising near the Venezuelan border, but is sidetracked by another rebellion in [[Cartagena, Colombia|Cartagena]].<ref>{{cite book|first=John|last=Lynch|title=Simón Bolívar: A Life|location=New Haven|publisher=Yale University Press|year=2007|page=233}}</ref>