Events relating to religion
Napoleon annexes the Papal States and is excommunicated by the pope, Pius VII
Napoleon, in response to his excommunication, has pope Pius VII arrested and kept in captivity in northern Italy and then France
The Jesuit Order is restored by Pius VII on his return to Rome
The rulers of Russia, Prussia and Austria form a Holy Alliance to preserve their concept of a Christian Europe
The first Reform congregation within Judaism is established in Germany, in the Hamburg Temple
A leader of the Ismaili sect is granted, by the shah of Persia, the hereditary title of Aga Khan
The Shaker settlements, now widespread in the US, form The United Society of Believers in Christ's Second Appearing
Daniel O'Connell organizes Catholic Associations throughout Ireland, funded by the members' penny subscriptions
A heavenly being appears to Joseph Smith in New York state – an event which launches the Mormon church

The Emancipation Act, enabling Daniel O'Connell to take his seat at Westminster, at last removes the restrictions on Catholics in UK public life
The Book of Mormon, translated from miraculously discovered holy tablets, is published by their finder Joseph Smith
Evangelical preacher Charles Grandison Finney leads a new wave of revivalism in the northeastern states
In his Divinity School Address, delivered at Harvard, Ralph Waldo Emerson criticizes formal religion and gives priority to personal spiritual experience
Joseph Smith and the Mormons create the thriving town of Nauvoo in Illinois on the Mississippi
The Young Men's Christian Association is founded in London by British drapery assistant George Williams
The Mormon leader, Joseph Smith, and his brother are killed by an armed mob in Nauvoo
Brigham Young leads the migration of Mormons west up the Missouri from Illinois
Brigham Young selects the site of Salt Lake City as the place for Mormon settlement
Two New York girls, Maggie and Katie Fox, claim to be in touch with the spirit of a murdered man, thus launching the modern cult of spiritualism
Samson Raphael Hirsch becomes rabbi of a synagogue in Frankfurt, where he develops the theme of neo-Orthodoxy
The first American branch of the Young Men's Christian Association is established in Boston
The citizens of the US are scandalized to discover that the Mormons practise polygamy
France demands that Turkey should end Russia's exclusive control of the Christian Holy Places in the Ottoman empire
Russia insists that her exclusive rights over the Holy Places are enshrined in the treaty of Kuchuk Kainarji
Antoinette Brown becomes the first female to be ordained a minister in the USA, in the First Congregational Church in South Butler, NY