* 1830 – Charles X of France abdicates the throne in favor of his grandson Henri.

* 1777 – Francis I of the Two Sicilies ( d. 1830 )

* 1762 – George IV of the United Kingdom ( d. 1830 )

* 1830 – The Belgian Revolution begins.

The 1830 – 1850 period later became known as the era of Jacksonian democracy.

* 1781 – Bhagwan Swaminarayan, Indian religious leader ( d. 1830 )

* 1830 – The Baltimore and Ohio Railroad's new Tom Thumb steam locomotive races a horse-drawn car, presaging steam's role in US railroading.

* 1756 – Jan Śniadecki, Polish mathematician ( d. 1830 )

* Henry Nicholas Paint ( 1830 – 1921 ), member of Parliament, merchant, landowner

In the late eighteenth and during the nineteenth century, Lithuanian participants in the 1794, 1830 – 1831, and 1863 rebellions against the Russian czarist rule were exiled to Abakan.

Abdülaziz ( Ottoman Turkish: عبد العزيز / ` Abdü ’ l -` Azīz ; February 9 / 18, 1830 – June 4, 1876 ) was the 32nd Sultan of the Ottoman Empire and reigned between 25 June 1861 and 30 May 1876.

Abdur Rahman Khan () ( between 1830 to 1844 – October 1, 1901 ) was Emir of Afghanistan from 1880 to 1901.

* 1775 – Charlotte of Spain ( d. 1830 )

People starting with John Oxley in 1817, 1818 and 1821, followed by Charles Sturt in 1829 – 1830 attempted to follow the westward-flowing rivers to find an " inland sea ", but these were found to all flow into the Murray River and Darling River which turn south.

Sir Thomas Grenville ( 1755 – 1846 ), a Trustee of The British Museum from 1830, assembled a fine library of 20, 240 volumes, which he left to the Museum in his will.

#*** Julie Charlotte Pauline Zénaïde Laetitia Désirée Bartholomée Bonaparte ( 1830 – 1900 )

#** Jerome Napoleon Bonaparte II ( 1830 – 1893 ), married Caroline Le Roy Appleton Edgar

One Pipiolo leader from the south, Ramón Freire, rode in and out of the presidency several times ( 1823 – 1827, 1828, 1829, 1830 ) but could not sustain his authority.

*** House of Bourbon – Condé branch ( 1557 – 1830 )

** Charles X ( 1824 – 1830 )

** Louis-Philippe ( 1830 – 1848 )

** Francis I ( 1825 – 1830 )

** Ferdinand II ( 1830 – 1859 )

In 1830, Pope Pius VIII bestowed upon Bernard the title " Doctor of the Church ".

The Church of Jesus Christ of Latter-day Saints traces its current dispensation beginnings to Joseph Smith, Jr. on April 6, 1830 in Western New York.

On April 6, 1830, in western New York, Smith organized the religion's first legal church entity, the Church of Christ.

It is estimated that the Christian Church numbered about 12, 000 by 1830.

Since 1830 The Church of Jesus Christ of Latter-day Saints has identified the Book of Mormon as the " record of the stick of Ephraim " () while the stick of Judah is identified with the Bible.

* 1830 – The General Assembly's Institution, now the Scottish Church College, one of the pioneering institutions that ushered the Bengal Renaissance, is founded by Alexander Duff and Raja Ram Mohan Roy, in Calcutta, India.

Dr. Abbott graduated at Bowdoin College in 1825, prepared for the ministry at Andover Theological Seminary, and between 1830 and 1844, when he retired from the ministry in the Congregational Church, preached successively at Worcester, Roxbury and Nantucket, all in Massachusetts.

Smith published what he said was a translation of these plates in March 1830 as the Book of Mormon, named after Mormon, the ancient prophet-historian who compiled the book, and on April 6, 1830, Smith founded the Church of Christ.

During production of this work in mid-1829, Smith, his close associate Oliver Cowdery, and other early followers began baptizing new converts into a Christian primitivist church, formally organized in 1830 as the Church of Christ.

Joseph Smith, Jr. who established the Church of Christ in 1830, is considered a prophet by members of the Latter Day Saint movement, of which The Church of Jesus Christ of Latter-day Saints is the largest denomination.

In 1830, the Methodist Protestant Church split from the Methodist Episcopal Church over the issue of laity having a voice and vote in the administration of the church, insisting that clergy should not be the only ones to have any determination in how the church was to be operated.

The Clapham Sect or Clapham Saints were a group of influential like-minded Church of England social reformers based in Clapham, London at the beginning of the 19th century ( active c. 1790 – 1830 ).

St. Stephen's Church was consecrated by John Matthias Turner, Bishop of Calcutta, on November 5, 1830.

The sites chosen were the Elisha Sharp House ( also known as the Sharp-Wasson-Worth House, c. 1825 ), the Stewart House ( 1830 ), the R. H. Johnson Stable, the Mount Zion church and Cemetery ( 1830 ), Zeigler's Mill ( 1850, previously Gettys Mill ), the Washington Ferry ( 1808 ), the Pisah Church ( 1818 ), the old gymnasium ( c. 1822 ), the old Meigs County Courthouse ( 1904 ), the old Volunteer Electric Cooperative BUilding ( 1935 ), the Ashley House ( 1885 ), and the Sam Eaves Store ( c. 1861 ).

Community of Christ, known from 1872 to 2001 as the Reorganized Church of Jesus Christ of Latter Day Saints ( RLDS ), is an American-based international church established in April 1830 that claims as its mission " to proclaim Jesus Christ and promote communities of love, joy, peace, and hope ".

Formerly known as the Reorganized Church of Jesus Christ of Latter Day Saints, this denomination regards itself as a reorganization of the church organized in 1830 by Joseph Smith, Jr., and it regards Joseph Smith III, the eldest surviving son of Smith Jr., to have been his legitimate successor.

St Michael and All Angels Church, designed by local architect George Smith and completed in 1830, was dubbed the Needle of Kent in honour of its tall, thin spire ( it is also nicknamed the Devil's Pick or the Devil's Toothpick ).

Although formed in upstate New York in 1830, the LDS Church leadership and members began moving to Jackson County as soon as word of the August 1831 dedication ceremony was published.

Clitherall was founded in 1864 by members of the Church of Jesus Christ ( Cutlerite ), a small Latter Day Saint faction started in 1853 by Alpheus Cutler, a former associate of Joseph Smith, Jr., founder of the original Latter Day Saint church in 1830.

In Fayette on April 6, 1830 Joseph Smith, Jr., who was from nearby Palmyra, New York, organized the Church of Christ, later to be known as the Church of Jesus Christ of Latter Day Saints, in a log home owned by Peter Whitmer, Sr .. Whitmer was one of five others besides Smith who formed the initial six members of what evolved into the LDS church.