* Ada Lovelace ( 1815 – 1852 ), the first computer programmer

* 1815 – Robert Volkmann, German composer ( d. 1883 )

* 1815 – Adolf Friedrich von Schack, German writer ( d. 1894 )

* 1815 – Richard Henry Dana, Jr., American lawyer, politician, and author ( d. 1882 )

Lost Worlds: The Emergence of French Social History, 1815 – 1970 ( 2006 ) 250pp excerpt and text search

* 1740 – Matthias Claudius, German poet ( d. 1815 )

* 1815 – John Bosco, Italian priest and educator ( d. 1888 )

* 1815 – The modern Constitution of the Netherlands is signed.

* 1815 – The Second Serbian Uprising – a second phase of the national revolution of the Serbs against the Ottoman Empire, erupts shortly after the annexation of the country to the Ottoman Empire.

In 1815, Patrick was appointed curate of the chapel in Thornton, near Bradford ; a second daughter, Elizabeth ( 1815 – 1825 ), was born shortly after.

Historians identify several waves of migration to the United States: one from 1815 – 1860, in which some five million English, Irish, Germanic, Scandinavian, and others from northwestern Europe came to the United States ; one from 1865 – 1890, in which some 10 million immigrants, also mainly from northwestern Europe, settled, and a third from 1890 – 1914, in which 15 million immigrants, mainly from central, eastern, and southern Europe ( many Austrian, Hungarian, Turkish, Lithuanian, Russian, Jewish, Greek, Italian, and Romanian ) settled in the United States.

* 1896 – Henry Parkes, English statesman and politician ( b. 1815 )

** 26 April 1803 – 1815 a ' Small Council ' ( president rotating monthly )

* annual Amtsbürgermeister 1815 – 1831

* 1815 – Joseph Winston, American Congressman ( b. 1746 )

* 1815 – Anthony Trollope, English novelist ( d. 1882 )

On 15 September / 17 September 1815 in Weilburg, Charles married Princess Henrietta of Nassau-Weilburg ( 1797 – 1829 ).

* Henry Austin Bruce, 1st Baron Aberdare ( 1815 – 1895 )

He was crowned Emperor of the French and ruled from 1804 – 1814, 1815.

* Napoleon I ( 1804 – 1814, 1815 ), also King of Italy ( 1805 – 1814 ) and Emperor in Elba ( 1814 – 1815 )

The two most violent volcanic eruptions in modern times occurred in Indonesia ; in 1815 Mount Tambora in Sumbawa erupted killing 92, 000 and in 1883, Krakatau, erupted killing 36, 000.

The unusual coolness of the winter of 1815 – 1816 and of the following summer was primarily due to the eruption of Mount Tambora in Indonesia, in April 1815.

This year was known as the ' Year Without a Summer ' because of low temperatures in the northern hemisphere, the result of the Mount Tambora volcanic eruption in Indonesia in 1815.

The 1815 eruption of the Mount Tambora volcano in Indonesia caused crop failures and famines worldwide and caused the worst famine of the 19th century.

Chichester Canal ( painting ) | Chichester Canal s vivid colours may have been influenced by the eruption of Mount Tambora in 1815.

It is believed that the anomaly was caused by a combination of a historic low in solar activity with a volcanic winter event, the latter caused by a succession of major volcanic eruptions capped by the 1815 eruption of Mount Tambora, in the Dutch East Indies ( Indonesia ), the largest known eruption in over 1, 300 years.

It is now generally thought that the aberrations occurred because of the 1815 ( April 5 – 15 ) volcanic Mount Tambora eruption on the island of Sumbawa, Indonesia ( then part of the Dutch East Indies, but under British rule during Napoleon's occupation of the Netherlands ), described by Thomas Stamford Raffles.

Use of the radiocarbon dating technique has established the dates of three of Mount Tambora's eruptions prior to the 1815 eruption.

In 1812, Mount Tambora entered a period of high activity, with its climactic eruption being the catastrophic explosive event of April 1815.

* 100 billion m < sup > 3 </ sup > — estimated volume of rock exploded in eruption of Mount Tambora volcano on 12 April 1815

A similar, but extraordinarily more powerful phenomenon occurred in the cataclysmic April 1815 eruption of Mount Tambora on Sumbawa Island in Indonesia.

Memorial to Sir William Wilde and his wife located in Mount Jerome Cemetery, DublinSir William Robert Wills Wilde MD, FRCSI, ( March 1815 – 19 April 1876 ) was an Irish eye and ear surgeon, as well as an author of significant works on medicine, archaeology and folklore, particularly concerning his native Ireland.

After enduring privations and sufferings of the severest kind, he returned to Cairo in June 1815 in a state of great exhaustion ; but in the spring of 1816 he travelled to Mount Sinai, whence he returned to Cairo in June, and there again made preparations for his intended journey to Fezzan.

* Tambora culture, an unidentified village and associated culture on Sumbawa, destroyed by the 1815 eruption of Mount Tambora

The eruption is believed to have contributed to the accumulation of atmospheric ash, capped off by the catastrophic eruption of Mount Tambora in 1815, that led to the Year Without a Summer in 1816.

The first delegated general conference met at Mount Pleasant, Pennsylvania, in 1815, and adopted a confession of faith, rules of order and a book of discipline, which were revised in 1885 – 1889, when women were first admitted to ordination.

The 1815 eruption of Mount Tambora, a stratovolcano in Indonesia, occasioned mid-summer frosts in New York State and June snowfalls in New England and Newfoundland and Labrador in what came to be known as the " Year Without a Summer " of 1816.

The eruptions of Mount Asama mark the span of Japan's recorded history, including: 2009, 2008, 2004, 2003, 1995, 1990, 1983, 1982, 1973, 1965, 1961, 1958 – 59, 1953 – 55, 1952, 1952, 1950 – 51, 1949, 1947, 1946, 1944 – 45, 1938 – 42, 1935 – 37, 1934, 1934, 1933, 1931 – 32, 1930, 1929, 1929, 1927 – 28, 1924, 1922, 1920 – 21, 1919, 1918 ?, 1917, 1916, 1915, 1914, 1909 – 14, 1908, 1908, 1907, 1907, 1906, 1905 ?, 1904, 1903, 1902, 1902, 1900 – 01, 1899, 1899, 1894, 1889, 1879, 1878 ?, 1875, 1869, 1815, 1803, 1803, 1783, 1779 ?, 1777, 1776, 1769, 1762, 1755, 1754, 1733, 1732, 1731, 1729, 1729, 1728, 1723, 1723, 1722, 1721, 1720, 1719, 1718, 1717, 1711, 1710, 1708 – 09, 1706, 1704, 1703, 1669, 1661, 1661, 1660, 1659, 1658, 1657, 1656, 1655, 1653, 1652, 1651, 1650 ?, 1649, 1648, 1648, 1647, 1645, 1644, 1609, 1605, 1604, 1600, 1598, 1597, 1596, 1596, 1595 ?, 1591, 1590, 1532, 1528, 1527, 1518, 1427 ?, 1281, 1108, 887, 685.

* The 1815 eruption of Mount Tambora in Indonesia

The eruption of Mount Tambora on Sumbawa Island, in 1815, is thought to be the most massive in recorded history.

The eruption of nearby Mount Tambora on Sumbawa is known for the most violent eruption in recorded history on 15 April 1815, with a scale 7 on the VEI.

The name derives from the Mount Vernon home of George Washington ; the original Washington Monument, a massive pillar commenced in 1815 to commemorate the first president of the United States, is the defining feature of the neighborhood.

* New Martyrs Euthymius, Ignatius ( 1814 ), and Acacius ( 1815 ) of Mount Athos