Atheism is an absence of belief in the existence of deities.

Maps and diagrams of atheism

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  Negative atheists and positive atheists.
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  Implicit and explicit atheism.
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  Nonreligious population by country, 2010, according to Pew Research.
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  Percentage of people in various European countries who said: "I don't believe there is any sort of spirit, God or life force." (2010)
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  Percentage of self-declared atheists in Europe, according to Eurobarometer 2019.

History of atheism

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  Bust of a Greek philosopher, possibly Democritus. Villa of the Papyri, Herculaneum.
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  Epicurus.
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  Agostino Scilla, Epicurus, circa 1670–1680.
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  In his work De rerum natura, Lucretius stated that everything consists of atoms moving in infinity.
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  Skeptics in Raphael's painting The School of Athens. On the right there is possibly Theodorus the Atheist.
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  Lucretius pointing to the movement of the atoms, illustration from 1682.
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  De rerum natura by Lucretius, between 1475 and 1494.
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  Thomas Hobbes.
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  Theophrastus redivivus, between 1600 and 1700.
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  Denis Diderot.
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  Alexander Roslin, Portrait of Baron d'Holbach, 1785.
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  Paul Thiry d’Holbach: The System of Nature (1770).
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  Civil marriage became possible with the French Revolution.
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  Jeremy Bentham.
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  Monument to Ludwig Feuerbach in Nuremberg.
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  Statue of Charles Bradlaugh.
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  Tombstone detail of a freethinker, 19th century.
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  Bust of Friedrich Nietzsche by Max Klinger, circa 1904.
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  Edvard Munch, Friedrich Nietzsche, 1906.
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  Watson Heston, Two Ways to Go, 1896.
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  Jugendweihe is a secular coming of age ceremony. Photograph from early 20th century Germany.
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  "It's incomprehensible that people don't believe in God when even the emperor believes!" 1911 drawing by Ernst Heilemann in German satirical magazine Simplicissimus.
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  Monument to the Freethinkers association in the Dasbeck cemetery, Germany.
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  Bertrand Russell in 1936.
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  "I am free now!". A propaganda poster encouraging young women of Soviet Turkestan to join the Komsomol, 1921.
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  The Foucault pendulum inside the cathedral in USSR.
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  Commemorative stamp on Gora (Goparaju Ramachandra Rao), India 2002.
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  Strawberry Fields memorial, New York 1985.

Atheism in 21st century

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  According to naturalism, the natural world is the only real world.
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  Richard Dawkins in 2005.
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  Richard Dawkins: The God Delusion (2006).
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  Daniel Dennett in 2006.
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  Christopher Hitchens 2007.
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  Richard Dawkins, Christopher Hitchens, Daniel Dennett, Sam Harris.
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  Author José Saramago in 2008.
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  Stephen Hawking 2008.
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  University of Alberta Atheists and Agnostics 2008.
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  Philosopher Peter Singer.
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  Philosopher Telmo Pievani in Rome at the 2012 Darwin Day organised by UAAR.
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  Journalist and activist Jamila Bey speaks in Reason Rally 2012.
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  Blogger Hemant Mehta aka The Friendly Atheist in 2014.
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  Biologist Richard Dawkins, cosmologist Lawrence Krauss and science writer Julia Galef in 2015.
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  The Dutch magazine De Vrijdenker (The Freethinker) 2015.
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  Sam Harris 2016.
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  Bart Campolo's lecture to the Atheist Community of San Jose in May 2017.
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  Atheist of the Year award presented by Kazimierz Lyszczynski Foundation.
• Atheist music realized with AI music generation tools: Syntharia – My God Is Science.
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  Atheist Alliance International logo.

Atheism in America

Atheism in Asia and Africa

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  Rationalist, skeptic, and godman debunker Narendra Nayak during a miracle-exposure program in 2007.
• Message of Rafida Ahmed, widow of Avijit Roy, 2015.
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  Taslima Nasrin in 2019.
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  Iraqi women's rights activist Worood Zuhair in 2019.
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  Atheist meeting in Nairobi, Kenya in 2020.

Atheism in Europe

Atheism in Oceania

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  Atheist Foundation of Australia.
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  Global Atheist Convention 2010, Melbourne.
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  Global Atheist Convention 2010, Melbourne.
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  Global Atheist Convention 2012, Melbourne.

Ex-muslim activists

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  Nahla Mahmoud, Secular Conference 2015.
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  Sarah Haider, Ex-Muslims of North America, 2017.
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  Zehra Pala, the president of Atheism Association of Turkey in 2017.
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  Muhammad Syed, Ex-Muslims of North America, 2017.
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  Ibtissame Lachgar and One Law For All award at the Secular Conference 2018.
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  Women's rights activist Zara Kay 2018.
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  Rana Ahmad.
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  Maryam Namazie in 2019.
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  Sarah Haider, Shabana Rehman and Maryam Namazie in 2019.
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  Armin Navabi, founder of Atheist Republic, speaking at the Atheist Days in Warsaw, on 2019.
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  Arzu Toker from Germany in 2020.

Symbols of atheism

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  Symbol of atheism, created by Diane Reed in 2007.
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  Icon from The Noun Project.
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  Atomic A.
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  Atom logo.
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  Atom of atheism.
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  The Scarlet A.
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  International Atheist Day (March 23) symbol.
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  A symbol of atheism that resembles the symbol of anarchism.
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  Pansy is a symbol of freethought.
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  Atheist badge.
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  The Darwin fish.

Books about atheism

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  D. M. Brooks: The Necessity of Atheism (1933).
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  George H. Smith: Atheism: The Case Against God (1974).
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  J. L. Mackie: The Miracle of Theism (1983).
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  Michel Onfray: Atheist Manifesto (2005, in English 2007).
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  Richard Dawkins: The God Delusion (2006).
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  Christopher Hitchens: God is Not Great (2007).
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  A. C. Grayling: Against All Gods (2007).
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  Herman Philipse: God in the Age of Science? (2012).
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  A. C. Grayling: The Good Book (2013).

Criticism of atheism

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  E. J. Pace, The Descent of the Modernists, 1924.
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  Postcard by American Legion, 1930s or 1940s.

See also

• Criticism of religion
• Freethought
• History of atheism
• Humanism
• Irreligion
• Secularism
• Secular ceremonies
• Scientific skepticism
• Symbols of atheism

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