Editing 1730 (section)

=== January&ndash;March ===
* [[January 30]] (January 19 O.S.) &ndash; At dawn, Emperor [[Peter II of Russia]] dies of [[smallpox]], aged 14 in Moscow, on the eve of his projected marriage.
* [[February 26]] (February 15 O.S.) &ndash; [[Anna of Russia]] (Anna Ioannovna) becomes reigning [[Empress of Russia]] following the death of her cousin Emperor [[Peter II of Russia|Peter II]]. 
* [[February 28]] &ndash; [[Vitus Bering]] returns to the Russian capital of [[Saint Petersburg]] after completing the [[First Kamchatka expedition]]. 
* [[March 5]] &ndash; The [[1730 papal conclave]] to elect a new Pope for the Roman Catholic church begins with 30 Cardinals, 12 days after the death of [[Pope Benedict XIII]]. By the time his successor is elected on July 12, there are 56 Cardinals.
* [[March 9]] &ndash; General [[Nader Shah|Nader Khan]] of [[Persia]] opens the first campaign of the [[Ottoman–Persian War (1730–1735)]], guiding the Persian Army from [[Shiraz]] and starting the [[Western Persia campaign of 1730|Western Persia Campaign]] against the Ottoman Empire.
* [[March 12]] &ndash; [[John Glas]] is deposed from the [[Church of Scotland]]; the [[Glasite]] sect forms around him.<ref>{{cite book|title=The Pocket Date Book|url=https://archive.org/details/pocketdatebooko00categoog|publisher=Chapman and Hall|first=William L. R.|last=Cates|author-link=William Leist Readwin Cates|year=1863}}</ref>
* [[March 16]] &ndash; The establishment by [[Thomas Cresap]] of [[Wright's Ferry]] under the authority of the [[Province of Pennsylvania]]<ref name=Egle>William H. Egle, ''History of the Commonwealth of Pennsylvania, Civil, Political and Military from Its Earliest Settlement to the Present Time, Including Historical Descriptions of Each County in the State, Their Towns, and Industrial Resources'' (E.M. Gardner Co., 1883) p322</ref> becomes the basis for [[Cresap's War]], a nine-year-long conflict also known as the Maryland-Pennsylvania boundary dispute; the conflict mainly centers in [[Lancaster County, Pennsylvania]] and [[York County, Pennsylvania]] on either bank of the [[Susquehanna River]].